To calculate SS E(Sum of Squared Error ) we use the formula of
SSE Total SS - Regression, SS but this answer does not make sense
because the SSE cannot be negative.
What is the Sum of Squared Error?In statistics, the discrepancy between the observed and anticipated
values is known as the sum of squares error (SSE). Since it is the sum
of the squares of the residual or the difference between predicted
values and actual values, it is also known as the sum of squares
residual (SSR).
To calculate the Sum of Squared Error (SSE), we can use the formula:
SSE = Total SS - Regression SS
We are given the value of Regression SS as 3538.71 and the value of Total SS as 18. Therefore, we can calculate the value of SSE as:
SSE = Total SS - Regression SS
SSE [tex]= 18 - 3538.71[/tex]
SSE = [tex]-3520.71[/tex]
However, this answer does not make sense because the SSE cannot
be negative. This suggests that there may be an error in the given
information. Specifically, the value of Total SS should be greater than
or equal to the value of Regression SS. Without additional information
, we cannot provide a correct answer for this question.
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BRAINLIEST to whoever shows work PLEASE
The value of angle [tex]m[/tex]∠UTS for the given rhombus figure through which the relation is satisfied is x = 6 and the value of [tex]m[/tex]∠UTS = [tex]74^{0}[/tex]
What about rhombus?
A rhombus is a quadrilateral with all four sides of equal length. It is also known as a diamond or a lozenge. In addition to having equal sides, a rhombus also has opposite angles that are congruent (i.e., equal) and consecutive angles that are supplementary (i.e., add up to 180 degrees).
The properties of a rhombus include:
- All sides are equal in length.
- Opposite angles are congruent.
- Consecutive angles are supplementary.
- Diagonals bisect each other at right angles.
- The diagonals of a rhombus are perpendicular to each other.
- The area of a rhombus can be calculated by multiplying the length of one diagonal by the length of the other diagonal and dividing by 2.
According to the given information:
The diagonal of the rhombus bisect the angle into equal part
In which, [tex](10x - 23)^{0} = (3x + 19)^{0}[/tex]
[tex](10x - 23)^{0} = (3x + 19)^{0}[/tex]
[tex]10x - 3x = 19 + 23\\\\7x = 42\\\\x = 6[/tex]
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A chemical solution contains 15% alcohol. If there is 54 ml of alcohol,what is the volume of the solution
In Linear equation, The volume of the solution is 100ml.
What in mathematics is a linear equation?
An algebraic equation with simply a constant and a first-order (linear) component, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation.
Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables. Equations with power 1 variables are known as linear equations. axe+b = 0 is a one-variable example in which a and b are real numbers and x is the variable.
Let the volume of the solution be represented by x.
Therefore, we can form an equation based on the information given which will be
= 15% × x = 54
15/100 × x = 54.
0.15 × x = 54
0.15x = 54
x = 54/0.54
x = 100 ml
The volume of the solution is 100ml.
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Julia needs to make a box in the shape of a rectangular prism with a height of 3 inches and a volume of 243 cubic inches. The dimensions, in inches, must be whole numbers greater than 1. Julia claims that the length and the width must be equal.
Part A: What dimensions would support Julia's claim about the length and with of the box?
Part B: What dimensions would not support Julia's claim about the length and width of the box.
Part A length =______________
Part A width=_____________________.
Part B length_________________
Part B Width=_____________________.
The volume of a rectangular prism is equal to length*width*height. In this case, we have V = 243 and H = 3.
243 = LW(3), so LW = 81, where L & W are whole numbers greater than 1. There are only 3 possible pairs of values for this: 27 x 3, 9 x 9, and 3 x 27 (we cannot use 1 x 81 or 81 x 1, since we need dimensions > 1).
Part A: This could be true if Length = 9 in and Width = 9 in, as 9 x 9 = 81.
Part B: The claim could be false if Length = 27 in and Width = 3 in, as 27 x 3 = 81, but 27 is not equal to 3.
Note that the width cannot be longer than the length.
Can someone please help me!
8. A photographer has 8 photos to choose from to display at a local art exhibit. The
photographer randomly selects 5 photos to display on the first day. You randomly select 5 photos. What is the probability you select the photos in the same order as the photographer displays them on the first day?
Answer:
Step-by-step explanation:
Complete the following statement:
Blank % of $72 = $36
$36 is the 50 percentage of $72.
Let missing percentage be x.
A percentage in mathematics is a number or ratio that depicts a portion of 100. Per 100 is what "percentage" refers to. It is devoid of any units.
The equation will be,
Formula,
x% of 72 = 36
[tex]\frac{x}{100}[/tex] × 72 = 36
72x = 36(100)
72x = 3600
x = [tex]\frac{3600}{72}[/tex]
x = 50
$36 is the 50% of $72.
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A standard deck of 52 cards has 4 suits: clubs, spades, hearts, and diamonds. Each suit has number cards 2 through 10, a jack, a queen, a king, and an ace. The jack, queen, and king are considered "face cards".
What is the probability of drawing one card from a standard deck of cards and choosing a "face card"?
A. 1/3
B. 3/52
C. 1/4
D. 3/13
the probability of drawing one card from a standard deck of cards and choosing a "face card" is 3/13.
What is probability?
By simply dividing the favorable number of possibilities by the entire number of possible outcomes, the probability of an occurrence can be determined using the probability formula. Because the favorable number of outcomes can never exceed the entire number of outcomes, the chance of an event occurring might range from 0 to 1.
There are 12 face cards in a standard deck of 52 cards (4 jacks, 4 queens, and 4 kings). So the probability of drawing a face card from a standard deck of cards is:
P(face card) = number of face cards / total number of cards
P(face card) = 12/52
Simplifying the fraction, we get:
P(face card) = 3/13
Therefore, the probability of drawing one card from a standard deck of cards and choosing a "face card" is 3/13.
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Note: Compare 3 different specialty accounts from CIBC bank
Account 1 name -
Account 2 name -
Account 3 name -
To be answered for each specialty account.
Monthly Fee ($)
Account 1-
Account 2-
Account 3-
Are the fees waived? If yes, explain.
What types of transactions are included and how many?
Note: debits-withdrawals
credits - deposits
Account 1-
Account 2-
Account 3-
Are there additional fees? If yes, explain and include their cost.
Account 1-
Account 2-
Account 3-
Are there any special features of this account (such as cheques included, bill payments, internet/phone services, etc.)?
Account 1-
Account 2-
Account 3-
Answer:
Step-by-step explanation:
Account 1 name - CIBC Smart Account
Account 2 name - CIBC Everyday Chequing Account
Account 3 name - CIBC US$ Personal Account
Monthly Fee ($)
Account 1- $4.95 to $14.95 per month, depending on the account balance and number of transactions
Account 2- $3.90 to $14.95 per month, depending on the account balance and number of transactions
Account 3- $0 for a minimum balance of US$3,000, otherwise $4.95 per month
What is the interquartile range of this data?
6
9
20
Number of Coins in Collection
12 16 20
لبسشسا
24 28 32 36 40
The interquartile range of the given data is 20 and last option is the correct choice.
What is interquartile range?The interquartile range is difference of upper quartile and lower quartile.
We have been given the 5-number summary of a box plot that represents Coins in Collection. The five-number summary from left to right is 7, 16, 30, 36, 38.
We are asked to find the inter-quartile range of the given data.
The 5-point summary represents the lower data point, lower quartile, median, upper quartile and upper data point respectively.
We can see from our given 5 point-summary that lower quartile is 16 and upper quartile is 36.
interquartile range= upper quartile- lower quartile
interquartile range= 36 - 16
interquartile range = 20
Therefore, the interquartile range of the given data is 20 and last option is the correct choice.
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g(x) = 3x²
Step 1: Make a table of values for g(x) = 3x²
To make a table of values for g(x) = 3x², we can choose several values of x and plug them into the equation to get the corresponding values of g(x).
What is the table for g(x)?The table for g(x) is formulated as follows;
Let's choose some values of x:
To find the corresponding value of g(x), we simply plug each value of x into the equation and simplify:
For x = -2, g(x) = 3(-2)² = 3(4) = 12
For x = -1, g(x) = 3(-1)² = 3(1) = 3
For x = 0, g(x) = 3(0)² = 3(0) = 0
For x = 1, g(x) = 3(1)² = 3(1) = 3
For x = 2, g(x) = 3(2)² = 3(4) = 12
The table formed is in the image attached.
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Suppose that the walking step lengths of adult males are normally distributed with a mean of 2.7 feet and a standard deviation of 0.4 feet. A sample of 69 men’s step lengths is taken.
Step 1 of 2 : Find the probability that an individual man’s step length is less than 2.3 feet. Round your answer to 4 decimal places, if necessary.
The probability that an individual man's step length is less than 2.3 feet is approximately 0.1587 or 15.87% (rounded to 4 decimal places).
Explain probability
Probability is a branch of mathematics concerned with measuring the likelihood or chance of events occurring. It is expressed as a number between 0 and 1, where 0 means the event is impossible and 1 means it is certain. Probability theory is used in many fields, including statistics, economics, physics, and engineering, to analyze and make predictions based on uncertain events.
According to the given information
The standardized value, also known as the z-score, is given by:
z = (x - mu) / sigma
Substituting the given values, we get:
z = (2.3 - 2.7) / 0.4
z = -1
Now we need to find the probability that an individual man's step length is less than 2.3 feet, which is equivalent to finding the area under the standard normal distribution curve to the left of the z-score -1.
Using a standard normal distribution table or calculator, we can find that the area to the left of -1 is 0.1587.
Therefore, the probability that an individual man's step length is less than 2.3 feet is approximately 0.1587 or 15.87% (rounded to 4 decimal places).
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Since services depend on high-quality employee providers, companies in the service industry emphasize _____.
training employees
educating employees
supervising employees
disciplining employees
Companies in the service industry heavily rely on their employees to provide high-quality services to their customers. Therefore, these companies emphasize training employees to ensure that they have the necessary skills and knowledge to perform their job responsibilities effectively.
What are industry?
Training can take various forms, including on-the-job training, classroom training, or e-learning. It helps employees develop new skills, enhance their existing skills, and stay up-to-date with the latest trends and practices in the industry. By investing in employee training, companies can improve the quality of their services, increase customer satisfaction, and gain a competitive edge in the market.
Apart from training, educating employees is also essential in the service industry. Education can include providing information on the company's values, mission, and goals, as well as industry-specific knowledge. It helps employees understand the company's expectations and their roles and responsibilities, resulting in increased job satisfaction and motivation. Educating employees also helps them stay informed about changes in the industry and the company's policies and procedures.
Supervising employees is another critical aspect of ensuring high-quality services in the service industry. Effective supervision involves providing guidance, feedback, and support to employees to ensure that they are performing their job responsibilities effectively. It also involves identifying areas for improvement and providing resources and training to help employees enhance their skills.
Disciplining employees is not an ideal approach to emphasize in the service industry as it can lead to demotivation and lower job satisfaction. However, it is essential to have a fair and consistent disciplinary process in place to address any issues that arise and maintain a positive work environment. Overall, emphasizing training, educating, and supervising employees can lead to high-quality services and increased customer satisfaction in the service industry.
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Consider the quadratic function f(x) = x2 – 5x + 12. Which statements are true about the function and its graph? Select three options. The value of f(–10) = 82 The graph of the function is a parabola. The graph of the function opens down. The graph contains the point (20, –8). The graph contains the point (0, 0).
The true statements are
The value of f(–10) = 82
The graph of the function is a parabola.
The graph contains the point (20, –8).
What is a Parabola:A parabola is a type of conic section that is formed when a plane intersects a cone in such a way that the angle between the plane and the vertical axis of the cone is equal to the angle between the plane and a generator (a straight line passing through the vertex and the base of the cone).
The resulting shape is a symmetrical, U-shaped curve. The standard form of the parabola is a quadratic function.
Here we have
The quadratic function f(x) = x²/5 – 5x + 12
Now check each option as follows
1. The value of f(–10) = 82
To check this find f(-10) as follows
f(-10) =1/5 (-10)²– 5(-10) + 12 = 20 + 50 + 12 = 82
Hence, The value of f(–10) is equal to 82
2. The graph of the function is a parabola.
As we know the standard equation of a parabola is a quadratic function that is in the form of ax² + bx + c
Hence, the quadratic function represents a parabola
3. The graph of the function opens down.
In the given function f(x) = x²– 5x + 12, the coefficient of the x² term is 1. Since the coefficient of x² is positive, the parabola opens upwards.
Hence, The graph of the function opens down is false
4. The graph contains the point (20, –8).
To check this substitute the point in f(x)
=> –8 = 1/5(20)²– 5(20) + 12
=> –8 = 80 – 100 + 12
=> –8 = –8 [ Which is true ]
Hence, The graph contains the point (20, –8).
5. The graph contains the point (0, 0).
=> 0 = (0)²– 5(0) + 12
=> 0 = 12 [ which is not true ]
Hence, The graph doesn't contain the point (0, 0).
Therefore,
The true statements are
The value of f(–10) = 82
The graph of the function is a parabola.
The graph contains the point (20, –8).
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Identify the coefficient and the exponent for each term of 6x³
O The coefficients are 6 and 4. The exponents are 3 and 0.
O The coefficients are 6 and -4. The exponents are 3 and 1.
The coefficients are 3 and 1. The exponents are 6 and -4.
The coefficients are 6 and -4. The exponents are 3 and 0.
- 4x.
-
Answer:
The coefficients are 6 and -4. The exponents are 3 and 1.
Mary planted a lemon tree and an apple tree. The lemon tree is 4 1/2 feet tall. The apple tree is 3/4 as tall as the lemon tree. How tall, in feet, is Mary's apple tree?
The height of Mary's apple tree is 3 feet.
What in height?Height is a mathematical term that refers to the vertical distance between an object's top and base. Sometimes, it has the designation "altitude." The measurement of an item along the y-axis in coordinate geometry is referred to as height in geometry.
Height, altitude, and elevation all refer to the vertical distance between something's top and bottom or its base and something above it. Height is used to describing everything that may be measured vertically, high or low.
Given that, the lemon tree is 4 1/2 feet tall.
The apple tree is 3/4 as tall as the lemon tree.
4x 1/2 3/4 = 4 3/4 or 3
Thus, the correct option is 3 feet.
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deigo has $500 dolars in his saving account each month he takes out $20 to pay for karate class. let m be the number of months write an expression yo show the total amount ain deigos saving account after m months
The expression shows the total amount in Diego's savings account after m months is 500 - 20m.
What is the total amount?
Two numbers are added together to form the sum. It is simple to figure out the sum of small integers. You can add two numbers using your fingertips. When two or more numbers are added together, a mathematical sum or maths sum is the outcome. It is the sum of the numbers when they are added up.
Here, we have
Given: Deigo has $500 in his saving account each month he takes out $20 to pay for karate class.
Let m be the number of months. Write an expression to show the total amount in Diego's savings account after m months.
The expression:
= 500 - 20m
Here m is the number of months
Hence, the expression shows the total amount in Diego's savings account after m months is 500 - 20m.
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Ahmad's Coffee Shop makes a blend that is a mixture of coffee types A and B. In one bag of the blend, there are 3 kilograms of type A. Four bags of the blend are a total of 36 kilograms. How many kilograms of type B are there in one bag?
Write an equation that could be used to answer the question above. First, choose the appropriate form. Then, fill in the blanks with the numbers 3 ,4 , and 36 . Let represent the number of kilograms of type B in one bag.
I need the answer asap please! by 3:00pm
Answer:
The appropriate form for this problem is:
(Amount of Type A per bag) + (Amount of Type B per bag) = Total weight per bag
Using the given information, we can fill in the blanks:
(3 kg) + (___ kg) = (36 kg) ÷ (4 bags)
Simplifying the right side:
(36 kg) ÷ (4 bags) = 9 kg/bag
Substituting back into the equation:
3 kg + (___ kg) = 9 kg/bag
Solving for the blank:
___ kg = 9 kg/bag - 3 kg
___ kg = 6 kg/bag
Therefore, there are 6 kilograms of type B in one bag of the blend.
A single number cube numbered 1 to 6 is rolled twice. Event A is obtaining a 3 on the first roll and event B is obtaining an even number on the second roll. Which of the following describes these events?
A. Events A and B are independent because the occurrence of one affects the occurrence of the other.
B.Events A and B are dependent because the occurrence of one affects the occurrence of the other.
C.Events A and B are independent because the occurrence of one does not affect the occurrence of the other.
D.Events A and B are dependent because the occurrence of one does not affect the occurrence of the other.
Using probability we know that the correct option is (C) Events A and B are distinct from one another because their occurrence has no bearing on it.
What is probability?The probability of occurrence is a metric used in science to determine how likely an event is to occur.
When expressed as a percentage, it is written as a number between 0 and 1, or between 0% and 100%.
The higher an event's probability, the more likely it is to occur.
By computing the ratio of favorable outcomes to all outcomes, a probability calculator can determine the chance of an event.
So, in the given situation:
Event A and Event B are independent.
Then, thus occurrence of 1 does not affect the occurrence of others.
Therefore, using probability we know that the correct option is (C) Events A and B are distinct from one another because their occurrence has no bearing on it.
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Maurice has a bag containing 40 small wooden blocks.
There are 20 cubes, of which 5 are blue.
There are 20 spheres, of which 6 are blue
Maurice randomly selects a cube from the bag.
What is the probability that the cube he selects is NOT blue?
Answer: The probability that the cube Maurice selects is NOT blue is 0.75 or 75%.
Step-by-step explanation: The total number of cubes in the bag is 20, of which 5 are blue. Therefore, the number of cubes that are not blue is:
20 - 5 = 15
Maurice randomly selects one cube from the bag, so the total number of possible outcomes is 20. The probability of selecting a cube that is not blue is:
15/20 = 3/4 = 0.75
Therefore, the probability that the cube Maurice selects is NOT blue is 0.75 or 75%.
Answer:
Answer: The probability that the cube Maurice selects is NOT blue is 0.75 or 75%.
Step-by-step explanation: The total number of cubes in the bag is 20, of which 5 are blue. Therefore, the number of cubes that are not blue is:
20 - 5 = 15
Maurice randomly selects one cube from the bag, so the total number of possible outcomes is 20. The probability of selecting a cube that is not blue is:
15/20 = 3/4 = 0.75
Therefore, the probability that the cube Maurice selects is NOT blue is 0.75 or 75%.
Step-by-step explanation:
if anyone can helpp me please......
Answer:
Without repetition: 6 numbers
With repetition: 27 numbers
Step-by-step explanation:
Given:
Numbers: 2;3;4 (3 numbers in total)
Without repetition (in the first place you can write all 3 out of 3 numbers, in the 2nd place two, since you cannot repeat the 1st number and so on)
Multiply the choice options:
3 × 2 × 1 = 6 (we don't divide it by the factorial of 3, because the order of forming numbers is important)
.
With repetition (in all three places you can write all 3 given numbers, since you can repeat them)
Multiply the choice options:
3 × 3 × 3 = 27 (the order is important)
Convert 850 (base 10) to base 9.
Answer:
1144 to base 9
Step-by-step explanation:
9 8509 94 r 4
9 10 r 4
9 1 r 1
9 0 r 1
After this take an arrow from down to up
The figure below showsADC andBEC.
Complete the two-column proof.
BEAC and ADCB
CB ≅ CA
Prove:
ADC ≅BEC
Statement Reason
BE and AD CB
CB ≅ Given
and BEC are right angles Perpendicular lines form angles
= Property
ADC ≅ Postulate
we are given that CB is congruent to CA and that BE and AD are perpendicular
HOW TO SOLVE TRIANGLE?
Statement Reason
BE and AD are perpendicular Perpendicular lines form angles
CB ≅ CA Given
∠BEC and ∠ADC are right angles Given
BC = AC Definition of congruent segments
∠BCE ≅ ∠ACD Corresponding parts of congruent triangles are congruent (CPCTC)
∠CEB ≅ ∠DCA Corresponding parts of congruent triangles are congruent (CPCTC)
∠A ≅ ∠B Vertical angles are congruent
ADC ≅ BEC ASA (angle-side-angle) postulate
In summary, we are given that CB is congruent to CA and that BE and AD are perpendicular. We also know that ∠BEC and ∠ADC are right angles. Using these facts, we can show that triangles ADC and BEC are congruent by showing that two pairs of corresponding angles and the included side are congruent. Specifically, we use the fact that ∠BCE ≅ ∠ACD and ∠CEB ≅ ∠DCA, along with the fact that BC = AC, to apply the CPCTC (corresponding parts of congruent triangles are congruent) to show that the two triangles are congruent by the ASA (angle-side-angle) postulate.
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Carlotta is planting 40 tulip bulbs. she has dug holes for 15% of the bulbs so far. How many holes has she dug?
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{15\% of 40}}{\left( \cfrac{15}{100} \right)40}\implies \text{\LARGE 6}[/tex]
8) Find the perimeter of the rectangle below
16 cm
34 cm
Answer: 92 cm
Step-by-step explanation:
Your first step should be to solve for variables. Usually when finding unknown lengths or widths for perimeter, we use L & W to solve for length and width. You're already given 16 for the width of the rectangle. Perimeter: (L+L+W+W). Now we solve for length. Do 34 squared - 16 squared to get the missing length. 1156-256=900. Find the square root of 900 and now you have your length (30). Now you just add all the values up. 30+30+16+16=P. Therefore, the perimeter should equal 92. :)
1) 156° is equal to (5) 17″ 15 b) 137 15 c) (115) (75) 15 d)
156° is equal to = 13π/15 radians.
What is radians?
Degree and radian both serve as angles' units of measurement in geometry. 2 (in radians) or 360° (in degrees) can be used to express an entire anticlockwise rotation. As a result, degree and radian can be compared as follows:
2π = 360° And π = 180°
As a result, we can conclude that 180 degrees equals one radian using the equation above.
156 degree = 156°
As we know that 180° = π Radians
1° would be equal to π/180
156° would be equal to = 156 * π/180
= 78 π/90
= 39 π/45
= 13π/15
156° = 13π/15 Radians
Therefore, 156° is equal to = 13π/15 radians.
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4. The t test for two independent samples - One-tailed example using tables
Most engaged couples expect or at least hope that they will have high levels of marital satisfaction. However, because 54% of first marriages end in divorce, social scientists have begun investigating influences on marital satisfaction. [Data source: This data was obtained from the National Center for Health Statistics.]
Suppose a counseling psychologist sets out to look at the role of economic hardship in relationship longevity. He decides to measure marital satisfaction in a group of couples living above the poverty level and a group of couples living below the poverty level. He chooses the Marital Satisfaction Inventory, because it refers to “partner” and “relationship” rather than “spouse” and “marriage,” which makes it useful for research with both traditional and nontraditional couples. Higher scores on the Marital Satisfaction Inventory indicate greater satisfaction. There is one score per couple. Assume that these scores are normally distributed and that the variances of the scores are the same among couples living above the poverty level as among couples living below the poverty level.
The psychologist thinks that couples living above the poverty level will have greater relationship satisfaction than couples living below the poverty level. He identifies the null and alternative hypotheses as:
H₀: μcouples living above the poverty level
μcouples living below the poverty level
H₁: μcouples living above the poverty level
μcouples living below the poverty level
This is a tailed test.
The psychologist collects the data. A group of 39 couples living above the poverty level scored an average of 51.1 with a sample standard deviation of 9 on the Marital Satisfaction Inventory. A group of 31 couples living below the poverty level scored an average of 45.2 with a sample standard deviation of 12. Use the t distribution table. To use the table, you will first need to calculate the degrees of freedom.
The degrees of freedom are .
The t distribution
Proportion in One Tail
0.25 0.10 0.05 0.025 0.01 0.005
Proportion in Two Tails Combined
df 0.50 0.20 0.10 0.05 0.02 0.01
1 1.000 3.078 6.314 12.706 31.821 63.657
2 0.816 1.886 2.920 4.303 6.965 9.925
3 0.765 1.638 2.353 3.182 4.541 5.841
4 0.741 1.533 2.132 2.776 3.747 4.604
5 0.727 1.476 2.015 2.571 3.365 4.032
6 0.718 1.440 1.943 2.447 3.143 3.707
7 0.711 1.415 1.895 2.365 2.998 3.499
8 0.706 1.397 1.860 2.306 2.896 3.355
9 0.703 1.383 1.833 2.262 2.821 3.250
10 0.700 1.372 1.812 2.228 2.764 3.169
11 0.697 1.363 1.796 2.201 2.718 3.106
12 0.695 1.356 1.782 2.179 2.681 3.055
13 0.694 1.350 1.771 2.160 2.650 3.012
14 0.692 1.345 1.761 2.145 2.624 2.977
15 0.691 1.341 1.753 2.131 2.602 2.947
16 0.690 1.337 1.746 2.120 2.583 2.921
17 0.689 1.333 1.740 2.110 2.567 2.898
18 0.688 1.330 1.734 2.101 2.552 2.878
19 0.688 1.328 1.729 2.093 2.539 2.861
20 0.687 1.325 1.725 2.086 2.528 2.845
21 0.686 1.323 1.721 2.080 2.518 2.831
22 0.686 1.321 1.717 2.074 2.508 2.819
23 0.685 1.319 1.714 2.069 2.500 2.807
24 0.685 1.318 1.711 2.064 2.492 2.797
25 0.684 1.316 1.708 2.060 2.485 2.787
26 0.684 1.315 1.706 2.056 2.479 2.779
27 0.684 1.314 1.703 2.052 2.473 2.771
28 0.683 1.313 1.701 2.048 2.467 2.763
29 0.683 1.311 1.699 2.045 2.462 2.756
30 0.683 1.310 1.697 2.042 2.457 2.750
40 0.681 1.303 1.684 2.021 2.423 2.704
60 0.679 1.296 1.671 2.000 2.390 2.660
120 0.677 1.289 1.658 1.980 2.358 2.617
∞ 0.674 1.282 1.645 1.960 2.326 2.576
0.50 0.20 0.10 0.05 0.02 0.01
H₀: μcouples living above the poverty level ≤μ couples living below the poverty level
H₁: μcouples living above the poverty level > μcouples living below the poverty level
What test is this?This is a right / one tailed test
How to solve for the degree of freedomThe degree of freedom = n1 + n2 - 2
= 39 + 21 - 2
= 68
t score = 1.668
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Shana recently led efforts to clean up the city park for the kids and efforts to provide home and yard repair or cleaning for individuals who needed assistance.
-Of the 80 volunteers who showed up to help with the city park clean-up one Saturday, 60% returned a second Saturday to help with the community outreach service day to the elderly or disabled.
-After this second Saturday, 6 of the volunteers signed up to continue helping with the community outreach service day once a month.
What percentage of the volunteers from the second Saturday signed up to continue helping with community outreach service day once a month?
A. 7.5%
B. 15%
C. 12.5%
D. 10%
Correct option is C. Hence,12.5% percentage of the volunteers from the second Saturday signed up to continue helping with community out reach service day once a month.
How to find percentage of volunteers?On the first Saturday, 80 volunteers showed up, and on the second Saturday, 60% of them did the same . The quantity of volunteers who showed up again on the second Saturday :
60% of 80 = 0.6 x 80 = 48
6 of these 48 volunteers agreed to continue offering their services once a month. So,the percentage of volunteers from the second Saturday
(6/48) x 100% = 12.5%
As a result, 12.5% of the volunteers from the second Saturday agreed to continue participating in the monthly community outreach work day.
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if there are 220 members of the 7th grade class then how many students can be expected to prefer the zoo
66 students can be expected to prefer the zoo in 220 members of the 7th grade class.
What are the median, mode, and mean?Different techniques are used to calculate the averages of data sets for mean, median, mode, and range. The mean represents the sum of all the numbers. In an ordered list, the middle number is the median. The most frequent number is the mode. The highest number less the smallest number is the range.
The provided table contains the percentage of 7th graders who favor the zoo. Twelve of the 40 7th graders who were sampled prefer the zoo. Out of the 220 pupils in the 7th grade, we can use this proportion to determine how many love the zoo:
12/40 or 0.3 of 7th students say they prefer going to the zoo.
The predicted proportion of seventh graders who prefer the zoo is 0.3 x 220, or 66.
So, 66 is the correct response.
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Complete question is :
--------------------------------------------------------------------
Grade Zoo Museum Sports Complex
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7 Grade 12 18 10
8 Grade 14 19 7
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A random sample of 40 students from each grade level was surveyed regarding their preference for a class field trip.
If there are 220 members of the 7th grade class, then how many students can be expected to prefer the zoo?
394812066Given the circle below with chords FG and HI. Find the length of FJ. Round to the nearest tenth if necessary. 9-4 H 21 F J 26 25 G T
Based on the information, EFH and GHF does not have to be congruent.
What are congruent angles?Congruents angles are presented in the figure below. Congruent angles are angles that have the same measure or size. When two angles are congruent, they look exactly the same, even if they are in different orientations.
The symbol used to represent congruence is an equals sign with a tilde above it, like this: ≅. For example, if angle A and angle B have the same measure, we can write it as:
angle A ≅ angle B
Congruent angles play an important role in geometry because they allow us to compare and analyze different shapes and figures. In particular, when two angles are congruent, we can use this fact to make conclusions about other angles and sides of a shape.
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In circle O shown, points E, F, G, and H lie on the circle asshown and chords FH and GE intersect at J. Based on thisinformation alone, which two angles below do not have tobe congruent?m(1) angle FJE and angle HJG(2) angle EFH and angle HGE(3) angle EFH and angle GHF(4) angle FEG and angle FHG
Mrs. Cobb is comparing the testing performance of her morning classes to her afternoon classes in an attempt to determine if time of day impacts math performance.
The box plot for her morning classes is shown.
When compared to the morning class data, the data for the afternoon classes had the same range, a greater median, and a smaller interquartile range.
Which graph could represent the data for Mrs. Cobb's afternoon classes?
The graph that could represent the data for Mrs. Cobb's afternoon classes is given in option c.
What does the term "Box Plot" mean?A box plot is a graphical representation of data that summarises the distribution of a dataset. It visually summarises essential statistical parameters such as the median, quartiles, and outliers. A typical box plot is characterised by a box with whiskers protruding from it, thus the term "box-and-whisker" plot.
According to the given problem,
As compared to the morning class data, the afternoon class data showed the same range, a higher median, and a smaller interquartile range,Thus,
The box plot for the afternoon courses would display a box with a higher median than the morning class data, suggesting that the later classes had a higher median. In addition, the box would be shorter in height, indicating a narrower interquartile range (IQR) than the morning class data. The box plot whiskers would be the same length as the data from the morning sessions, showing the same range for the afternoon classes. When compared to the morning class box plot, the afternoon class box plot would have higher median, shorter in height (meaning a lower IQR), and have the same whisker length (representing the same range).Among the given options, only options A and C have higher median and shorter height for box plot of after noon class than morning class.Out of these,
Option A- Whisker length is not same as the Morning Class.
Option C - Whisker length is same as the Morning class.
Hence, Option C is correct
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Please help!!!!!!!!!!
Step-by-step explanation:
Lucia is right. Faye is wrong.
because
3y³(7 - 3y) = +21y³ - 9y⁴
that is different to
-21y³ - 9y⁴
they have to remember : the outward sign (and factor in general) then applies to all terms inside the brackets when doing the multiplication.
so, if we need only negative terms as result, we need either a negative outward sign and all inward signs are positive, or we have a positive outward sign, and all inward signs must be negative.
mixing things up will not work for this goal.
