The box plot represents the midterm scores of the students in a class:

The proportion of the sample that owns a smartphone was 83%.

The research question asked what proportion of the sample owns a smartphone.

To answer this question, we used a categorical variable called “cell” and created a pie chart with the appropriate percentages. We then determined the percentage of the sample that owns a smartphone and rounded it to the nearest percent.

In this case, the proportion of the sample that owns a smartphone was 83%.Identify the variable needed to answer the research question: Cell (categorical variable)The appropriate numerical summary: Percentage (proportion)A pie chart with the appropriate percentages in StatCrunch.

The percentage of the sample that owns a smartphone. The percentage to the nearest percent. The research question: 83% of the sample owns a smartphone.

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The linear equatiοn that best represents the depth οf the bοne in feet is x-4.

A linear equatiοn is an algebraic equatiοn that represents a straight line οn a graph. It cοnsists οf variables raised tο the first pοwer, cοnstants, and cοefficients, and can be written in the fοrm y = mx + b, where m is the slοpe οf the line and b is the y-intercept.

Linear equatiοns can be used tο mοdel a wide range οf real-wοrld situatiοns, including the relatiοnship between twο variables that are directly prοpοrtiοnal tο each οther. They are fundamental tο the study οf algebra and are widely used in many fields, including physics, engineering, and ecοnοmics.

Nοw,

The equatiοn that represents the depth οf the bοne in feet is:

depth =x-4  (As Jamal's dοg buried a bοne 4 feet belοw the grοund)

where x is the distance in feet frοm the surface οf the grοund.

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Complete Question :

Answer:

Step-by-step explanation:

R = [tex]\frac{KL}{d^{2} }[/tex] ------ equ.1

given R= 2O, L = 5.Om = 500cm, d = 0.25cm. substituting the given data into the above equation,

20 = [tex]\frac{500k}{(0.25)^{2} }[/tex]

20 = [tex]\frac{5.0K}{0.0625}[/tex]

50OK = 20 x 0.0625

K = [tex]\frac{20*0.0625}{500}[/tex]

K = 0.0025

substituting  value of K into equ. 1

R = [tex]\frac{0.0025L}{d^{2} }[/tex]

(from the second part of question, R = 10m = 1000cm, d = 2 x 0.25 = 0.5cm)

R = [tex]\frac{0.0025*1000}{(0.5)^{2} }[/tex]

R = 10

The approximate altitude of the rocket is 34.45 km (rounded to the nearest kilometer).

Given:

Angle of elevation from station A = 41°

Angle of elevation from station B = 75°

Distance between station A and station B = 20 km

Using the tangent function to calculate the altitude 'h' for each station:

For station A:

h = 20 * tan(41°) ≈ 17.39 km (rounded to two decimal places)

For station B:

h = 20 * tan(75°) ≈ 74.64 km (rounded to two decimal places)

Taking the average of the two altitudes,

(h from station A + h from station B)/2 = (17.39 + 74.64)/2 ≈ 34.45 km (rounded to two decimal places)

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the fire was burning at its highest rate at approximately 165,888,000 square inches per minute.

To find the square inches per minute that the fire was burning at its highest rate, we need to first find the total square footage of a football field, which is 360 feet x 160 feet = 57,600 square feet.

Since there are 12 inches in a foot, we can convert the square footage to square inches by multiplying by 12^2 (or 144).

57,600 square feet x 144 square inches per square foot = 8,294,400 square inches in one football field.

Next, we can find how many football fields the fire consumed in 20 hours by dividing the number of seconds in 20 hours (20 x 60 x 60 = 72,000 seconds) by 3 seconds per football field:

72,000 seconds ÷ 3 seconds per football field = 24,000 football fields consumed.

Finally, we can find the total square inches consumed by multiplying the number of football fields by the square inches in one football field:

24,000 football fields x 8,294,400 square inches per football field = 199,065,600,000 square inches consumed in 20 hours.

To find the square inches per minute, we can divide the total square inches consumed by the number of minutes in 20 hours (20 x 60 = 1,200 minutes):

199,065,600,000 square inches consumed ÷ 1,200 minutes = 165,888,000 square inches per minute.

Therefore, the fire was burning at its highest rate at approximately 165,888,000 square inches per minute.

Units: square inches per minute.

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At its highest rate, the fire was burning 16,588,800,000 square inches per minute.

First, find the area of one football field in square feet.
Area = length × width
Area = 360 feet × 160 feet
Area = 57,600 square feet
Convert the area to square inches. (1 foot = 12 inches)
Area = 57,600 square feet × (12 inches/foot) × (12 inches/foot)
Area = 829,440,000 square inches
Calculate the number of football fields burned per minute.
Since one football field was burned every 3 seconds,

we can find the number of football fields burned in a minute by dividing 60 seconds by 3 seconds.
Number of football fields burned per minute = 60 seconds / 3 seconds = 20 football fields
Calculate the total area burned per minute in square inches.
Area burned per minute = 20 football fields × 829,440,000 square inches/football field
Area burned per minute = 16,588,800,000 square inches.

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The probability that more than 7 of the invoices will be paid within ten working days is 0.8281

This is a binomial distribution problem where:

n = 10 (sample size)

p = 0.5 (probability of success, i.e., an invoice being paid within ten working days)

We need to find the probability of getting more than 7 invoices paid within ten working days, i.e., P(X > 7), where X is the number of invoices paid within ten working days.

Using the binomial probability formula, we get:

[tex]P(X > 7) = 1 - P(X ≤ 7)[/tex]

=[tex]1 - ∑(i=0 to 7) [nCi * p^i * (1-p)^{(n-i)][/tex]

where nCi is the number of ways to choose i items from n items, given by [tex]nCi = n! / (i! * (n-i)!).[/tex]

Calculating the above expression, we get:

[tex]P(X > 7) = 1 - [10C0 * 0.5^0 * 0.5^10 + 10C1 * 0.5^1 * 0.5^9 + ... + 10C7 * 0.5^7 * 0.5^3][/tex]

[tex]= 1 - 0.1719[/tex]

[tex]= 0.8281[/tex]

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If the p-value obtained from the paired t-test is less than the predetermined level of significance (usually 0.05), then it can be concluded that there is a statistically significant difference between the two treatments, and that imitrex is more effective than excedrin at eliminating migraines.

To determine if Imitrex works better than Excedrin at eliminating migraines in your study, the most appropriate statistical test to use is the Paired Samples t-test.

This test is suitable because:
We have two related samples: the same 25 women are given both Excedrin and Imitrex, so their response times are paired.
We're comparing the mean response times between two treatments, which requires a t-test.

The data is assumed to be normally distributed.
To conduct the Paired Samples t-test, follow these steps:
Calculate the difference in response times for each woman (Imitrex time - Excedrin time).

Calculate the mean of these differences.

Calculate the standard deviation of the differences.

Determine the degrees of freedom (25 women - 1 = 24).

Using the mean, standard deviation, and degrees of freedom, calculate the t-statistic.
Compare the t-statistic to the critical value from the t-distribution table, using your chosen significance level (e.g., 0.05).
If the t-statistic is greater than the critical value, reject the null hypothesis, concluding that there's a significant difference between the effectiveness of Imitrex and Excedrin for migraine relief.

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To determine if Imitrex works better than Excedrin, the most appropriate statistical test to use would be a "paired t-test."

We are comparing the efficacy of Imitrex and Excedrin for Migraine in the same group of 25 women, with each woman acting as her own control. You are measuring the time it takes for the headache to subside after administering each drug. To determine if Imitrex works better than Excedrin, the most appropriate statistical test to use would be a "paired t-test."

Step-by-step explanation:

1. Record the time it takes for the headache to subside after administering Excedrin and Imitrex to each woman.
2. Calculate the difference in time for each woman between the two drugs.
3. Compute the mean and standard deviation of these differences.
4. Perform a paired t-test to compare the mean difference to 0 (no difference between the two drugs).
5. Assess the p-value obtained from the t-test. If the p-value is less than the significance level (usually 0.05), then you can conclude that there is a statistically significant difference between the two drugs, suggesting that Imitrex works better than Excedrin in eliminating migraines.

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To determine the contribution of predictor X7 to a multiple linear regression model with p predictors and n observations, the partial F-test can be used to calculate the partial F-statistic for X7. This partial F-statistic is related to the t-test calculated for X7 in the same model, as the square of the t-statistic for X7 is equal to the partial F-statistic for X7.

To calculate the partial F-statistic for X7, you first fit the full model with all p predictors and record the residual sum of squares (RSS). Then, you fit a reduced model without X7 and record the residual sum of squares for this model (RSSr). The partial F-statistic for X7 is calculated as (RSSr - RSS) / q / RSS, where q is the number of predictors in the reduced model (excluding X7). This statistic follows an F distribution with 1 numerator degree of freedom and q denominator degrees of freedom.

The partial F-statistic is related to the t-test calculated for X7 in the same model because the square of the t-statistic for X7 is equal to the partial F-statistic for X7. Specifically, t^2 = partial F, where t is the t-statistic for the coefficient of X7 in the full model.

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--The complete question is, Suppose you have a multiple linear regression model with p predictors and n observations. Using the partial F-test, you want to determine the contribution of a particular predictor, say X7, to the model. How do you calculate the partial F-statistic for X7 and how is it related to the t-test calculated for X7 in the same model?--

The addition of trapezoids as a distinct category of quadrilaterals would modify the hierarchical structure of the "family tree" of quadrilaterals

What are parallel lines?

Parallel lines are two lines in a plane that never intersect. This means that they maintain the same distance between each other at all points. Parallel lines have the same slope and will never cross each other, no matter how far they are extended.

If we consider a trapezoid as a quadrilateral with at least one pair of parallel sides, it would affect the classification of other quadrilaterals in the "family tree". Specifically, the hierarchy of quadrilaterals would change as follows:

Quadrilaterals would be divided into two main groups: trapezoids and non-trapezoids.

Trapezoids would be further subdivided into isosceles trapezoids, where the non-parallel sides have the same length, and non-isosceles trapezoids, where the non-parallel sides have different lengths.

Non-trapezoids would be further divided into four subgroups: parallelograms, rectangles, rhombi, and squares.

Parallelograms would be defined as quadrilaterals with opposite sides parallel.

Rectangles would be defined as quadrilaterals with four right angles and opposite sides parallel.

Rhombi would be defined as quadrilaterals with all sides equal in length.

Squares would be defined as quadrilaterals that are both rectangles and rhombi.

Overall, the addition of trapezoids as a distinct category of quadrilaterals would modify the hierarchical structure of the "family tree" of quadrilaterals, and provide a more precise and comprehensive way of classifying these shapes based on their properties.

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Answer:

Step-by-step explanation:

false

Answer:

The center of the circle is at (-6, 14), and the radius is 15, so we have this equation:

[tex] {(x + 6)}^{2} + {(y - 14)}^{2} = 225 [/tex]

Answer: Let's assume that it takes Pam x minutes to give a haircut and y minutes to color hair.

From the information given, we can create two equations:

2x + y = 83 (Pam gave 2 haircuts and colored the hair of 1 client in 83 minutes)

1x + 3y = 164 (Pam gave 1 haircut and colored the hair of 3 clients in 164 minutes)

To solve for x and y, we can use elimination method or substitution method. Let's use substitution method.

From the first equation, we can solve for y in terms of x:

y = 83 - 2x

Substituting this into the second equation, we get:

1x + 3(83 - 2x) = 164

Simplifying and solving for x, we get:

x = 30

Substituting this value of x into either of the two equations, we can solve for y:

2(30) + y = 83

y = 23

Therefore, it takes Pam 30 minutes to give a haircut and 23 minutes to color hair.

Step-by-step explanation:

Answer: 4080

Step-by-step explanation:

First you have to find the area of the triangle. 24*10 = 240. 240/2 = 120. Then you multiply the area of the triangle and multiply it by 34. 120 * 34 = 4080. This means the answer is 4080

It is essential to encourage and support these girls to continue pursuing their interests and talents in math and science, as excelling in these fields can lead to successful careers and personal growth.

It is unfortunate that some girls may fear focusing on math and science during puberty due to concerns about popularity or attractiveness. However, it is important to remember that excelling in these subjects can lead to numerous opportunities and career paths in the future. It is also important to note that intelligence and academic achievement should be celebrated and valued regardless of gender stereotypes. Schools can play a role in promoting the importance of STEM subjects and encouraging girls to pursue their interests in these areas.

It has been observed that some girls who excelled in math and science during elementary school may develop concerns during puberty that focusing on these subjects might limit their popularity or attractiveness as girls. This could be due to societal stereotypes or peer pressure, which might influence their academic choices and priorities. It is essential to encourage and support these girls to continue pursuing their interests and talents in math and science, as excelling in these fields can lead to successful careers and personal growth.

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It is essential to encourage and support these girls to continue pursuing their interests and talents in math and science, as excelling in these fields can lead to successful careers and personal growth.

It is unfortunate that some girls may fear focusing on math and science during puberty due to concerns about popularity or attractiveness. However, it is important to remember that excelling in these subjects can lead to  and career paths in the future. It is also important to note that intelligence and academic achievement should be celebrated and valued regardless of gender stereotypes. Schools can play a role in promoting the importance of STEM subjects and encouraging girls to pursue their interests in these areas.

It has been observed that some girls who excelled in math and science during elementary school may develop concerns during puberty that focusing on these subjects might limit their popularity or attractiveness as girls.

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Answer:

-5y * 77

Step-by-step explanation:

The largest number we can factor out is 5. Therefore:

-385y

= -5y * 77

The 16 factors of -385 are:

1, 5, 7, 11, 35, 55, 77, 385

-1, -5, -7, -11, -35, -55, -77, -385

The factor pairs of -385 are:

1 × -385 = -385

5 × -77 = -385

7 × -55 = -385

11 × -35 = -385

35 × -11 = -385

55 × -7 = -385

77 × -5 = -385

385 × -1 = -385

Hope my answer helps you✌️

Mark BRAINLIEST

Answer:1.25

Step-by-step explanation:

it just math

The value of x for the intersecting chords is derived to be 1.9 and the segment FS is equal to 18

The property of intersecting chords states that in a circle, if two chords intersect, the product of the lengths of the segments of one chord is equal to the product of the lengths of the segments of the other chord.

UF × FS = VF × FT

8(10x - 1) = 9 × 16

80x - 8 = 144

80x = 144 + 8 {collect like terms}

80x = 152

x = 152/80 {divide through by 80}

x = 1.9

FS = 10(1.9) - 1 = 18

Therefore, the value of x for the intersecting chords is derived to be 1.9 and the segment FS is equal to 18

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Answer:

  A (top)

Step-by-step explanation:

You want to know which box plot represents the data in the given list.

The difference between the box plots is the location of the median.

When the data is sorted into order, it is ...

  {2500, 2712, 3500, 3876, 4247, 4753, 4983, 5000, 6214, 7500}

There are an even number of elements in this list, so the median is the average of the middle two:

  median = (4247 +4753)/2 = 9000/2 = 4500

The median is represented by the line inside the box of the box plot. The plot with its median at 4500 is the top one (shown in the attachment).

The top box plot represents the data.

<95141404393>

The probability of both events happening at the same time: P(green and tails) = P(green) x P(tails) = (1/4) x (1/2) = 1/8

What is probability?

Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 means the event is impossible and 1 means the event is certain to happen.

1/8.

There are four equally-sized sections on the spinner, so the probability of landing on green is 1/4. There are two equally likely outcomes when flipping a coin, so the probability of landing on tails is 1/2. Since the spinner and coin toss are independent events, we can multiply their probabilities to get the probability of both events happening at the same time: P(green and tails) = P(green) x P(tails) = (1/4) x (1/2) = 1/8.

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Answer:

x = 7 years

Step-by-step explanation:

The mean (M) is defined as the average of the sum of all the data points in a set:

[tex]M=\frac{r_{1}...r_{n} }{n}[/tex]

Thus, since there are five data points and we're given the mean, we can use the following formula to find x:

[tex]M=10\\10=\frac{(8+x+13+12+10)}{5}\\ 50=43+x\\7=x[/tex]

The measure of angle I in the triangle HIJ using given measurements is equal to 46.05 degrees.

In the triangle HIJ,

The measure of angle J is equal to 90 degrees.

This implies ,

HI is the hypotenuse.

JH is the opposite side to angle I.

In triangle HIJ,

Using trigonometric ratio we get,

sin ∠I = Opposite side / Hypotenuse

Substitute the values we have,

⇒ sin ∠I = 4.8 / 6.7

⇒ sin ∠I = 0.72

Now , take sin⁻¹ both the side of the equation we get,

⇒sin⁻¹(sin ∠I) = sin⁻¹( 0.72 )

Here sin⁻¹(sin ∠I) = ∠I

⇒∠I = sin⁻¹( 0.72 )

⇒∠I = 46.05 degrees

Therefore, the measure of angle I is equal to 46.05 degrees.

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The expression that gives the area as a function of the width is 4w²+3w.( option B)

The area of a shape is the space occupied by the boundary of a plane figures like circles, rectangles, and triangles.

The area of a rectangle is expressed as ;

A = l×w, where l is the length and w is the width.

Since the length is 3 inches more than four times the width, then;

l = 3+4w

Representing 3+w for l in the area formula, then we have;

A = (3+4w)(w)

A = 4w²+3w

therefore the expression that represents the area is 4w²+3w

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The variance is equal to the squared value of the standard deviation.(Option a)

The variance is a measure of how spread out a set of data is. It is calculated by taking the average of the squared differences of each data point from the mean. The standard deviation, on the other hand, is the square root of the variance and measures the spread of data in relation to the mean.

Therefore, the variance is equal to the squared value of the standard deviation. Mathematically, Var(X) = σ^2, where Var(X) is the variance and σ is the standard deviation.

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The total volume of the cylindrical can is given as follows:

C) 24.54 in³.

The volume of a cylinder of radius r and height h is given by the equation presented as follows:

V = πr²h.

The parameters for this problem are given as follows:

Hence the volume of the cylinder is obtained as follows:

V = π x 1.25² x 5

V = 24.54 in³.

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The Cube root of the resulting number is 8.

The smallest number that 40000 can be divided by so that the result is a perfect cube, we need to factorize 40000 into its prime factors:

[tex]40000 = 2^6 \times 5^4[/tex]

To make this a perfect cube, we need to ensure that the powers of each prime factor are multiples of 3.

The smallest number we can divide 40000 by so that the result is a perfect cube is:

[tex]40000 = 2^6 \times 5^4[/tex]

Now we can find the cube root of the resulting number:

[tex]3\sqrt (40000 \div 100) = 3\sqrt400 = 8.[/tex]

Factories 40000 into its prime components in order to determine.

The least number that the result may be divided by while still producing a perfect cube.

The powers of each prime factor must be multiples of three in order for this to be a perfect cube.

The least number that 40000 may be divided by to produce a perfect cube is:

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The radius of convergence is 4.

To find the radius of convergence, R, of the collection, we can use the ratio test:

[tex]lim_n→∞ |(a_(n+1)/[/tex][tex]a_n)|[/tex]

[tex]lim_n→∞ |(a_{(n+1})/[/tex]

[tex]= lim_n→∞ |(x+8) / 4| * |ln(n+1) / ln(n)|[/tex]

For the series to converge, this limit need to be less than 1. therefore, we've:

[tex]|(x+8) / 4| * lim_n→∞ |ln(n+1) / ln(n)| < 1[/tex]

For the reason that[tex]lim_n→∞ |ln(n+1) / ln(n)| = 1[/tex], we will simplify this to:

|(x+8) / 4| < 1

Taking the absolute cost under consideration, we have cases:

Case 1: (x+8)/4 < 1

In this case, we have x < -4.

Case 2: (x+8)/4 > -1

In this case, we have x > -12.

Consequently, the radius of convergence is the distance from the center of the collection (x = -8) to the closest endpoint of the c language (-12 on the left and -4 at the right):

R = min{8, 4} = 4

So, 4 is the radius of convergence.

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Thus, the new function g(x) on the graph is the result of dilation with the scale factor of 2. g(x) = 4x².

When a function is drawn closer to or farther away from an axis, it is said to have "dilated."

Given data:

Parent function f(x) = x²

New function g(x) = ?

From the given graph, consider the point (2,1) on the graph of g(x) function.

For the same value of y = 1 unit, x = 1 on the graph of f(x)

Thus, x ---> 2x (dilation by the scale factor of 2)

Now function:

g(x) = (2x)²

g(x) = 4x²

Thus, the new function g(x) on the graph is the result of dilation with the scale factor of 2. g(x) = 4x².

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The value of angle G is  31⁰.

The value of line GF is 5.

The value of X is 13.

The value of Y is 2.

The value of angle G is calculated as follows;

4x + 7 = 5x - 6

4x - 5x = - 6 - 7

-x = -13

x = 13

Angle H = angle F = 4x + 7

= 4(13) + 7

= 59⁰

Angle G = ¹/₂ (180 - 2x59)

Angle G = ¹/₂(180 - 118)

Angle G = 31⁰

The value of Y is calculated as follows;

y + 3 = 2y + 1

y - 2y = 1 - 3

-y = -2

y = 2

GF = 2y + 1

GF = 2x2 + 1 = 5

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To find the inverse of a function, we need to swap the positions of x and y and then solve for y. In other words, we replace f(x) with y and then solve for x.

x = 5y - 6

Next, we'll solve this equation for y:

x + 6 = 5y

y = (x + 6)/5