Pieces of data such as $18,000 and $350,000 represent outliers in this chart in standard deviation .
How to interpret a standard deviation?
The term "standard deviation" (or "") refers to the degree of dispersion of the data from the mean. Data are grouped around the mean when the standard deviation is low, and are more dispersed when the standard deviation is high. The standard deviation calculates how much the data vary from the mean value. It is helpful for contrasting data sets that might have the same mean but a different range.In this chart, there are outliers. The main outliers are $18,000 and $350,000. This is because we know the mean or average is $63,423, and therefore values that are too different from this average are considered outliers.
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Solve the equation V = s³ for s.
Answer in the form s = .
[tex]{ \bold{ \sqrt[3]{V}}} [/tex]
Step-by-step explanation:
[tex]{ \green{ \sf{V = s³}}}[/tex]
Cube on both sides, then
[tex]{ \green{ \sf{s = \sqrt[3]{V}}}} [/tex]
help meeeeeeeeeeeeeee pleaseee
The recommended screen size for the television is 59.85 inches.
What is an expression?An expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both.
In this case, the expression for the size of the television is given as:
S = 0.228x² + 8.154x - 8.3
where x = 7 feet
S = 0.228x² + 8.154x - 8.3
S = 0.228(7)² + 8.154(7) - 8.3
S = 11.172 + 57.078 - 8.4
S = 59.85
The size is 59.85 inches.
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Which expression is equivalent to (8−2 • 35)−2?
100 points and brainliest
Answer: -64
Step-by-step explanation:
(8−2 • 35)−2
8-70-2
8-72
-64
Answer:
(8 - 2 • 35) - 2 = -64
Step-by-step explanation:
Given problem,
→ (8 - 2 • 35) - 2
Let's solve the problem,
→ (8 - 2 • 35) - 2
→ (8 - (2 × 35)) - 2
→ (8 - 70) - 2
→ -62 - 2
→ -64
Hence, the answer is -64.
The measures of the angles of a triangle are shown in the figure below. Solve for x.
Answer:
x = 82°
Step-by-step explanation:
The three angles of the triangle add up to 180°
x + 40° + 58° = 180°
x + 98° = 180°
subtract 98°
x = 82°
Answer:
x = 82°
Step-by-step explanation:
The sum of the internal angles of a triangle = 180°
58° + 40° + x° = 180°
98° + x° = 180°
x° = 180° - 98°
x° = 82°
the number of cars that go through the drive-in window at a local bank each hour is an example of a continuous random variable.
The first statement is false and the second statement is true.
Probability is the branch of discrete mathematics. It is used for calculating how likely an event is to occur or happen. There are two types of random variables.
Discrete random variablesContinuous random variablesA random variable that takes a finite number of possible values can be defined as a Discrete random variable. A random variable that takes an infinite number of possible values can be defined as a Continuous random variable. A continuous random variable consists of only continuous values.
Continuous random variables are defined at intervals of values. Continuous random variables are represented by the area under a curve.
⇒ The number of cars that go through the drive-in window at a local bank each hour.
The number of cars can be counted and can be an integer like 10, 20,100 etc.
∵ The number of cars is countable it is not an example of a continuous random variable
⇒ The high daily temperature in Anchorage.
High daily temperature can be an integer or function like 60°, 120° etc
∵ The high daily temperature is an example of a continuous random variable.
Therefore, The number of cars that go through the drive-in window at a local bank each hour is not an example of a continuous random variable and The high daily temperature in Anchorage is an example of a continuous random variable.
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The complete question is
a market research firm conducts telephone surveys with a 44% historical response rate. what is the probability that in a new sample of 400 telephone numbers, at least 150 individuals will cooperate and respond to the questions? in other words, what is the probability that the sample proportion will be at least 150 400
The likelihood that at least 150 people will collaborate and react in a fresh sample of 400 telephone numbers is 0.9953.
Describe probability?The probability informs us of the likelihood that an event will occur. It is necessary for the likelihood to fall between 0 and 1. The likelihood of success is 1, whereas the probability of failure is 0.
Given, that the market research company has a history of having a 44% response rate for its telephone surveys.
Therefore, p=44%=0.44=μ
n=400
p=150/400
p=0.375
The standard deviation is then equal to,
σ=√(p(1-p))/n
σ=√(0.44(1-0.44))/400
σ=√(0.44×0.56)/400
σ=0.025
Using the z-table, the values are as follows:
z=(p-μ)/σ
z=(0.375-0.44)/0.025
z=-2.6
p(p>0.375)
=p(z>-2.6)
=1-p(z<-2.6)
=1-0.0047
=0.9953
=99.53%
Therefore, the likelihood that at least 150 people will participate and provide information in a new sample of 400 telephone numbers
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c.) In a class of 28 sophomores and juniors, 16 are
juniors. What percent of the class are sophomores?
The percent of the sophomores in the class of 28 sophomores and juniors is 42.86%.
According to the question,
We have the following information:
Total number in a class including sophomores and juniors = 28
Number of juniors in the class = 16
Now, we have the number of sophomores in this class:
Total number in the class- Number of juniors in the class
28-16
12
Now, we can easily find the percent of sophomores in the class by following the given steps:
Number of sophomores*100/Number of sophomores and juniors
1200/28
42.86%
Hence, the percent of the sophomores in the class of 28 sophomores and juniors is 42.86%.
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Carly wants to buy 10 litres of paint and
only wants to go to one shop to buy it.
Home Stores sells 2 litre tins of paint for
£4.85 each.
Paint Supplies sells 1 litre tins of paint for
£3.60 each and it's 3 for 2.
The DIY shop sells 2.5 litre tins of paint for
£7.50 each, and it's buy 3 get 1 free.
What is the cost of getting 10 litres from
each shop?
Write down where Carly should buy her
paint from in the comment box.
Answer:
Home Stores
4.85×5
= 24.25
Paint Supplies
£18
HALF SOLVED PLEASE HELP
help meeeeeeeeeeee pleaseeeeeeeeeee rn rnnnnnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeeeeee pleaseeeeeeeeeee rn rnnnnnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The Maximum and Minimum values of x is = (3,30)
The maximum of a quadratic function occurs at
x = − b/2a
If a is negative, the maximum value of the function is
f ( − b/2a).
f max x =ax^2+bx+c occurs at
x = −b/2a
Finding the value of
x = −b/2a
Substitute in the values of a and b.
x = − 18/2(3)
Simplify
x = -3
Replace the variable x with -3 in the expression
f (-3) = -3(-3)^2+18(-3)+3
f(-3) = - 27 +54 +3
f(-3) = -30
f(3) = 30
The maximum of -3x^2+18x+3 = (3,30)
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for a thin piece of 30 inches by 30 inches cardboard, square corners are cut out so that the sides can be folded up to make a box. what dimensions will yield a box of maximum volume? what is the maximum volume?
Dimensions 5in x 10in x 10in will yield a box with a max. volume of 500 cubic inches.
Volume = height x length x width
Considering 'x' as the length of the square corners that has been cut out from the cardboard and also, that is height of the cardboard box.
Square corners are cut out so that the sides can be folded up to make a box, cardboard sides would reduce by 2x
Therefore,
V = x (30-2x) (30-2x) --------------------------------- (1)
V=( 30x - 2x²) (30-2x)
V= 900x- 60x² - 60x² + 4x³
V= 4x³ - 120 x²+ 900x
Taking derivative with respect to x:
dV /dx = 12x² - 240 x +900
dV/dx = 4 (3x² - 60x +225)
For maximum dV/dx, make it equal zero
dV/dx = 0
⇒ 4 (3x² - 60x +225)=0
⇒ 3x² - 60x+225=0 (taking 3 common)
⇒ x² - 20x + 75 =0
Solving this quadratic equation, we get,
x² - 15x -5x + 75 =0
x(x-15) - 5(x-15) =0
Either (x-15)=0
x=15
Or, x-5=0
x = 5
If we substitute x = 15 in equation (1), volume becomes zero.
Therefore, x cannot be 15
When x= 5, putting in the equation (1)
V = 5 (30-2(5)) (30-2(5))
V= 5 (10) (10)
V= 500 cubic inches,
Therefore, Dimensions 5in x 10in x 10in will yield a box with a max. volume of 500 cubic inches
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2015
The ratio of boys to girls in a class is 4:3. There are 35 students in the class. How many
students are boys?
what is the definition of pi
and multiply it to a decimal number
(any equation)[tex]\pi[/tex]
Pi written as 3.l4 and π in mathematics is the ratio for the diameter of a circle to the circumference of that circle. The value is unending
What is Pi?Pi, which is represented by the Greek letter p, or, is a shorthand for the ratio of a circle's diameter to its circumference. No matter how big the circle is, this ratio will always be equal to pi. The value of pi is about 3.14 in decimal notation.
We are to multiply Pi to any equation
let the equation be (20.5 + 3x)[tex]\pi[/tex]
pi is represented in numbers by 3.14
Hence we would have the equation to be of the form
(20.5 + 3x)3.14
multiply through the bracket
64.37 + 9.42x
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Kwai bought `15` potage tamp for `\$8. 25`. All tamp cot the ame amount. How many tamp can Kwai purchae with $12
Lamp that can be bought with $12 is 21
What is an example of a unitary method?
A single or distinct unit is referred to by the word unitary. Therefore, the goal of this strategy is to establish values in reference to a single unit. The unitary technique, for instance, can be used to calculate how many kilometers a car will go on one litre of gas if it travels 44 km on two litres of fuel.
How is the unitary method divided?
This can be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees. In order to determine the value of one unit, we essentially divide the total value of a set of items by the number of units. The unitary approach is this.
Given that
Kwai bought 15 lamp for $8.25
$8.25 = 15 lamp
$1 = 15/8.25
$12 = (15/8.25)*12 = 21 approx.
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Hannah prepares 44 pies for the thanksgiving feast at her school. each pie is cut into 8 pieces. approximately how many students can hannah feed? round to the nearest ten.
Answer:352
Step-by-step explanation:
Write the equation for the following relation. P = {(x, y): (1, 0), (2, 4), (3, 8), (4, 12), . . .}
The equation of the relation x and y is y = 4x - 4
How to represent linear equation?The relation follows a linear pattern. Therefore, the relationship is linear.
A linear relationship can be represented in different form such as slope intercept form and point slope form.
Let's represent the equation in slope intercept form.
y = mx + b
where
m = slopeb = y-interceptTherefore,
m = 4 - 0 / 2 - 1
m = 4 / 1
m = 4
Therefore, let's find the y-intercept using (1, 0)
y = 4x + b
0 = 4(1) + b
b = -4
Therefore, the equation is y = 4x - 4
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The sum of 12 and a number. Use n for the variable. Responses 12/n 12/n 12 x n 12 x n 12 - n 12 - n 12 + n
The expression for the sum is (12 + n).
We are given two terms to add. The first number is 12, which is an integer. The second number is unknown. An integer is a number that has no decimal or fractional portion and can be negative or positive, including zero.
The second number is represented by a variable "n". A variable is a mathematical object's symbol and placeholder. A variable can, for example, represent an integer, a vector, or other data.
We need to write the expression for the sum of these two numbers. Let S represent the sum of these two numbers.
S = 12 + n
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A social worker earns an average bi-weekly net pay of $1,465.87. Which compound inequality correctly shows the amount of money, m, the social worker can spend if the monthly budget for debt is between 5% and 10%? $73.29 ≤ m ≤ $146.59 $158.80 ≤ m ≤ $317.61 $146.59 ≤ m ≤ $293.17 $190.56 ≤ m ≤ $349.37
The amount of money the social worker can spend is $146.59 ≤ m ≤ $293.17
What is an equation?An equation shows the relationship between two or more numbers and variables.
Let m represent the amount of money the social worker can spend.
A social worker earns an average bi-weekly net pay of $1,465.87. Hence:
Monthly revenue = 2 * $1465.87 = $2931.74
For a debt of 5%:
m = 5% of $2931.74 = 0.05 * $2931.74 = $146.59
For a debt of 10%:
m = 10% of $2931.74 = 0.1 * $2931.74 = $293.17
$146.59 ≤ m ≤ $293.17
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Answer:
$158.80 ≤ m ≤ $317.61
Step-by-step explanation:
Hello,
So first step is we would use the bi-weekly net pay of $1465.87 then times it by 26 so it would look like this
1465.87 × 26 = 38112.62
Then we would divide 38112.62 by 12
38112.62 ÷ 12 = 3176.0516
Then, we would determine how much the social worker can spend if the monthly budget for debt is between 5% and 10%.
3176.0516 × 5% = 158.80
3176.0516 × 10% = 317.61
So, therefore the answer is $158.80 ≤ m ≤ $317.61.
Huey lost 80 marbles. He was to find 45% of them. How many marbles did Huey find
Answer:
OK, so we know that 50% of the 80 marbles is 40, but we are supposed to find 45% of it, so basically it is 36 marbles he has found, I hope this is right!
Love from Ella
A city doubles its size every 5 years. If the population is currently 469,900, what will the
population be in 20 years?
the population would be 7,518,400
469,900 • 2^20/5
* 20/5 is part of the exponent
Answer:
7518400
Step-by-step explanation:
Doubling time model:
[tex]P= P_o 2^{\frac{t}{D}}[/tex]
Here, P is the initial value, D is the time taken to double the quantity, t is the given period of time.
[tex]P_o = 469,900\\\\\\D = 5 \ years\\t = 20 \ years[/tex]
[tex]P = 469,900 * 2^\frac{20}{5}\\\\P = 469,900 * 2^4[/tex]
= 469,900 * 2 * 2 * 2 * 2
= 7518400
flaws in a carpet tend to occur randomly and independently at a rate of one every 270 square feet. what is the probability that a carpet that is 7 feet by 12 feet contains no flaws?
The probability that a carpet that is 7 ft × 12 ft contains no flaws is 0.732
What is the Poisson Distribution Formula?The Normal, Binomial, and Poisson Distributions are the three types of continuous and discrete data-based distributions used in probability and statistics. The distribution of unusual occurrences is another name for the Poisson distribution. This is mostly used to forecast the likelihood of future events based on how frequently the past events occurred. It offers the chance that a specific number of events might happen during a particular time frame.
The formula for Poisson distribution is given below:
P(x) = (e^-x * m^x) / x!
Here we have,
flaws in a carpet tend to occur randomly and independently at a rate of one every 270 square feet
Given the dimensions of carpet = 7 feet × 12 feet
=> area of the carpet = 84 feet²
=> the expected mean of defects m = [1/270]*84 = 0.311
Now use the Poisson formula
P[x] = e^-m × m^x / x!
=> P(x = 0) = e^-(0.31) × 0.31^(0) / 0!
= (0.732 × 1)/1 = 0.732
Therefore,
The probability that a carpet that is 7 ft × 12 ft contains no flaws is 0.732
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Verify that the function satisfies the three hypotheses of Rolle’s Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle’s theorem. (Enter your answers as a comma-separated list.) f(x) = x^3 - 4x^2 - 16x + 8, [-4,4] Find c =
There are no values within the interval that satisfies the condition stated by Rolle's theorem.
What numbers does satisfy Rolle's theorem?In accordance to Rolle's theorem, a function existing within an closed interval [a, b] has at a least a value c within that interval such that the first derivative f'(c) is equal to the slope of the secant line that passes through the two interval limits. That is to say, Rolle's theorem is defined by the following formula:
f'(c) = [f(b) - f(a)] / (b - a), where a < c < b
Where:
f(a), f(b) - Values of the function evaluated at each interval limit.f'(c) - First derivative of the function evaluated at x = c.First, evaluate the function f(x) at x = - 4:
x = - 4
f(- 4) = (- 4)³ - 4 · (- 4)² - 16 · (- 4) + 8
f(- 4) = - 64 - 64 + 64 + 8
f(- 4) = - 56
Second, evaluate the function f(x) at x = 4:
x = 4
f(4) = 4³ - 4 · 4² - 16 · 4 + 8
f(4) = 64 - 64 - 64 + 8
f(4) = - 56
Third, determine the first derivative of the function f(x) and evaluate it at x = c:
f(x) = x³ - 4 · x² - 16 · x + 8
f'(x) = 3 · x² - 8 · x - 16
x = c:
f'(c) = 3 · c² - 8 · c + 16
Fourth, find the roots of the quadratic function found in the previous step.
3 · c² - 8 · c + 16 = 0
In accordance with the quadratic formula, the roots of the expression are 4 / 3 + i 4√2 / 3 and 4 / 3 - i 4√2 / 3, which are not real numbers.
Fifth, determine whether Rolle's theorem are applicable on the roots found in the previous step.
Since the roots of the polynomial 3 · c² - 8 · c + 16 are not real numbers, there are no number within the interval that satisfies Rolle's theorem.
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A hippopotamus can run 6 kilometers in 15 minutes. At this rate, how far can the hippopotamus run in 1 minute?
Answer:
400meters
Step-by-step explanation:
Find the speed of the hippopotamus by dividing distance with time
6000 meters ÷15minutes =400meters/minutes
you and your friends go to joshua tree national park on december 13 to watch the peak of the geminid meteor shower. according to the griffith observatory website, the expected number of meteors you will see is 150150 per hour. what is the probability that you will see at least two meteors in the first minute?
The probability that we will see at least two meteors in the first minute is 1251.5.
What is probability?The probability is the likelihood that something will happen, to put it simply. When we don't know how something will turn out, we can talk about the possibility of one outcome or the likelihood of several. The study of events that fit into a probability distribution is known as statistics. Probability is a branch of mathematics that deals with numerical representations of the likelihood of an event occurring or of a proposition being true.So, the probability that we will see at least 2 meteors in the first minute:
The expected start we can see in 1 hour is 150150.Then, in 1 minute:
150150/60 = 2,502.5Rounding off: 2,503Now, at least 2 meteors in 1 minute:
Probability formula: P(E) = Favourable events/Total eventsSolve as follows:
P(E) = Favourable events/Total eventsP(E) =2/2,503P(E) = 7.99P(E) = 1251.5Therefore, there is a 1251.5 percent probability that we will observe two meteors or more in the first minute.
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assume that the heights of men are normally distributed with a mean of 69.0 inches and a standard deviation of 2.8 inches. the u.s. marine corps requires that the heights of men be between 64 and 78 inches. if 500 men want to enlist in the u.s. marine corps, how many would you not expect to meet the height requirements?
The percentage of men who didn't expect to meet the height requirements be 96.29%
Given, that the heights of men are normally distributed with a mean of 69.0 inches and a standard deviation of 2.8 inches.
Find the percentage of men who meet the height requirements.
z(64) = (64-69)/2.8 = 1.7857
z(78) = (78-69)/2.8 = 3.2143
P(64 <= x <= 78) = P(1.78457<= z <=3.2143) = 0.0371 = 3.71%
So, the percentage of men who meet the height requirements be 3.71%
Now, the percentage men who didn't expect to meet the height requirements be
100 - 3.71 = 96.29%
Hence, the percentage of men who didn't expect to meet the height requirements be
96.29%
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PLS HURRY!!!Juan divided 12 jar of fish food into 7 equal parts. He feeds his fish one part each day.
What fraction of the jar of food will Juan will feed his fish each day?
Enter your answer as a fraction in simplest form by filling in the boxes.
Answer:1/14
Step-by-step explanation:He divides 1/2 of the jar into sevenths, but if he had the whole jar it would be fourteen parts because 2x7=14, or 14÷2=7
if 1,000 points are selected randomly inside the square with all points equally likely to be selected, how many of those points are expected to lie inside the circle?
The number of points that are expected to lie inside the circle is 785.
A circle is a closed two-dimensional figure. In a circle, all points are equidistant from the centre.
As per the given question, the circle is inscribed in a square,
The radius of the circle ( r ) = 1 The side length of the square ( s ) = 2⇒ The area of the circle = π × r × r
= π × 1 × 1
∴ The area of the circle = π
⇒ The area of the square = s × s
= 2 × 2
∴The area of the square = 4
The probability that a randomly selected point inside the square will lie inside the circle,
p = π / 4
The probability that a randomly selected point inside the square will lie outside the circle,
q = 1 - p
q = 1 - ( π / 4 )
⇒ Binomial trial with n = 1000 and p = π / 4,
Number of points expected to lie inside the circle(N) = n × p
= 1000 × ( π / 4 )
= 1000 × ( 3.14 / 4 )
= 1000 × ( 0.785 )
N = 785
Therefore, 785 expected points lie inside the circle.
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The complete question is
Answer: 56 square
Step-by-step explanation:
the idea that a large number of sample means or proportions will approximate a normal distribution, regardless of the distribution of the population from which they were drawn, is known as: random error simple random sample sample variance population variance central limit theorem
The Central Limit Theorem gives the idea that a large number of sample means or proportions will approximate a normal distribution, regardless of the distribution of the population from which they were drawn .
Central Limit Theorem : In probability theory , the Central Limit Theorem establishes that , in many situations , when independent random variables are summed up , their properly normalized sum tends toward a normal distribution even if the original variables themselves are not normally distributed .
The Central Limit Theorem gives the idea that a large number of sample means or proportions will approximate a normal distribution, regardless of the distribution of the population from which they were drawn .
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What is the length of the hypotenuse in 2 decimal places
A= (a+b+c+d)/4 solve for b
Answer:
b = 4A-a-c-d
Step-by-step explanation:
A = (a+b+c+d)/4 |*4
4A = a+b+c+d |-a-c-d
4A-a-c-d = b