A student finds that the coefficient of determination between age and IQ is0.60. What percentage of variation in IQ can be explained by the linearrelationship with age?A. 0%B. 30%C. 36%D. 60%E. 77%

Answers

Answer 1

ANSWER

60% option D

EXPLANATION

The coefficient of determination also known as the R-sqaured determines how difference in one variable can be explained by the difference in the other variable.

Now, since the coefficient of determination between age and IQ is 0.60, to determine the percentage of variation in IQ that can be explained by the variable "age"

we have 0.60 x 100% = 60%.

Hence, 60% of variation in IQ can be explained by the linear relationship with age.


Related Questions

Determine whether each of the following provides enough information to prove that △SQP ≅ △SQR. Select Yes or No for each statement.

Q is the midpoint of PR.
∠P ≅ ∠R
∠SQP is a right angle, ∠PSQ ≅ ∠RSQ
∠SQP is a right angle, m∠P = 33°, m∠RSQ = 57°
∠P ≅ ∠R, ∠PSQ ≅ ∠RSQ

Answers

For each statement for triangle SQP and SQR, Q is the midpoint of PR: No, ∠P ≅ ∠R: No, ∠PSQ ≅ ∠RSQ: Yes, m∠P = 33°, m∠RSQ = 57°: No, ∠P ≅ ∠R, ∠PSQ ≅ ∠RSQ: Yes.

What is triangle?

A triangle is a geometric shape that consists of three line segments connected end-to-end to form a closed shape. Triangles are one of the basic shapes studied in geometry and are used in a wide range of applications, from construction to computer graphics.

Here are the answers to whether each statement provides enough information to prove that △SQP ≅ △SQR:

Q is the midpoint of PR: No, this information alone is not sufficient to prove the triangles are congruent. We need additional information about the angles or sides.

∠P ≅ ∠R: No, this information alone is not sufficient to prove the triangles are congruent. We need additional information about the sides or other angles.

∠SQP is a right angle, ∠PSQ ≅ ∠RSQ: Yes, this information is sufficient to prove that the triangles are congruent by the angle-angle-side (AAS) congruence criterion.

∠SQP is a right angle, m∠P = 33°, m∠RSQ = 57°: No, this information alone is not sufficient to prove the triangles are congruent. We need additional information about the sides or other angles.

∠P ≅ ∠R, ∠PSQ ≅ ∠RSQ: Yes, this information is sufficient to prove that the triangles are congruent by the angle-angle-angle (AAA) congruence criterion.

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The lines below are parallel if the slope of the solid line is 2, what is the slope of the gas line?

The lines below are parallel if the slope of the solid line is 2, what is the slope of the gas line?

Answers

Answer:

2

Step-by-step explanation:

Parallel lines have the same slope. Hope this helps!

what are two numbers have a product of 20 and a sum of 9

Answers

Answer:

Step-by-step explanation:

can someone help me? I can't get rid of this test and it won't let me do it, I really don't know what to do and my grades will start to go down because I can't do it. (sorry if none of this makes sense)​

can someone help me? I can't get rid of this test and it won't let me do it, I really don't know what

Answers

Answer:

Step-by-step explanation:

There is no question to help with? Maybe ask your teacher or computer guy.

A charity needs to report its typical donations received. The following is a list of the donations from one week. A histogram is provided to display the data.

10, 11, 35, 39, 40, 42, 42, 45, 49, 49, 51, 51, 52, 53, 53, 54, 56, 59

A graph titled Donations to Charity in Dollars. The x-axis is labeled 10 to 19, 20 to 29, 30 to 39, 40 to 49, and 50 to 59. The y-axis is labeled Frequency. There is a shaded bar up to 2 above 10 to 19, up to 2 above 30 to 39, up to 6 above 40 to 49, and up to 8 above 50 to 59. There is no shaded bar above 20 to 29.

Which measure of variability should the charity use to accurately represent the data? Explain your answer.

The range of 13 is the most accurate to use, since the data is skewed.
The IQR of 49 is the most accurate to use to show that they need more money.
The range of 49 is the most accurate to use to show that they have plenty of money.
The IQR of 13 is the most accurate to use, since the data is skewed.

Answers

The most appropriate measure of variability to use in this case is the IQR (Interquartile Range) of 13.

How to determine which measure of variability should the charity use to accurately represent the data

The reason for this is that the data appears to be skewed towards the higher values, with more donations in the higher range (from 40 to 59 dollars) and fewer in the lower range (from 10 to 39 dollars).

Using the range (which is the difference between the highest and lowest values) would not accurately represent the variability of the data, as it would be heavily influenced by the outliers. On the other hand, the IQR, which is the range of the middle 50% of the data, is a more robust measure of variability that is not influenced by outliers. Therefore, the IQR of 13 is the most appropriate measure of variability to use in this case.

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find the positive suare root of the following number 57.27

Answers

The positive square root of 57.27 is approximately 7.5726, with further decimal places available through iterative approximation methods.

To find the positive square root of the number 57.27, we can use a calculator or mathematical operations.

Taking the square root of a number involves finding a value that, when multiplied by itself, gives the original number. In this case, we want to find the value that, when squared, equals 57.27.

Using a calculator, we can find the square root of 57.27 as approximately 7.5726. However, it's important to note that this is an approximation and may not be completely accurate due to rounding errors.

If we want to find a more precise answer manually, we can use iterative approximation methods. One such method is the Newton-Raphson method, which involves repeatedly refining an initial guess.

Starting with an initial guess of, let's say, 7, we can use the formula:

x(n+1) = (x(n) + (57.27/x(n)))/2,

where x(n) is the current approximation and x(n+1) is the next approximation. Iterating this formula a few times will converge to a more accurate value.

After a few iterations, we find that the positive square root of 57.27 is approximately 7.572615. This value can be further refined by performing more iterations or using more advanced numerical methods.

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What is the scale factor from ABC to AED?

What is the scale factor from ABC to AED?

Answers

The scale factor would be two you have to plug it in

The ratio of boys to girls in Ella’s grade is 3 to 4. The ratio of boys to girls in Minh’s grade is 4 to 5. Each grade has a total of 20 girls.

Answers

Answer:

In mih's school there are 100 boys

While in Ella's school there are 80 boys

Step-by-step explanation:

X*1/5=20

X=100

X*1/4=20

X=80

3000 sec equals how many hours

Answers

Answer:

That's only 50 minutes

If ANYONE ANSWERS I WILL GIVE THEM BRAINLIEST PLEASE HELP ME!!
If an investment account is leveraged by a ratio of 5:1, by how much would the value of the security invested need to drop before the value of the account falls to $0?

20%

50%

10%

5%

Answers

Answer:

From what my calculations said its 20%

Sammy wants to spend no more than $35 at the arcade. If he is playing games at the arcade that each cost $0.75, which inequality can be used to find g, the number of games that Sammy can play and stay within his goal

Answers

Answer:

0.75 g ≤ 35

Step-by-step explanation:

if each games costs $0.75, then the answer of g will be given by 35/0.75.

he can go up to exactly $35 but not over

so, the inequality is given by 0.75 g ≤ 35

The temperature at 2:00 pm is 27 degrees. At 2:00 am the temperature has fallen to -4 degrees. What is the difference in temperature from 2:00 pm to 2:00 am?

Answers

Answer:

The difference in temperature = 27-(-4)=31 degree

Step-by-step explanation:

Φ1 = ∬S1 (-2u^6cos(v) - 2u^3sin(v)) du dv
= ∫(0->1) ∫(0->2π) (-2u^6cos(v) - 2u^3sin(v)) dv du

Answers

\(\begin{align}\sf\:\Phi_1 &= \iint_{S_1} (-2u^6\cos(v) - 2u^3\sin(v)) \, du \, dv \\ &= \int_{0}^{1} \int_{0}^{2\pi} (-2u^6\cos(v) - 2u^3\sin(v)) \, dv \, du \end{align} \\\)

Find the Surface Area of the square Pyramid.
17 cm
17 cm
17 cm

Answers

so basically what you have to do is

The answer is 323.

Reason:

Base: 17x17 = 289

Triangles: 0.5x17 = 8.5x4 = 34

Area: 289+34 = 323

Write an equation in slope-intercept form for the line described.x-intercept (-7,0), y-intercept (0,1)

Answers

SOLUTION

The points are

\((-7,0)\text{ and (0,1)}\)

The equation is writing using the formula below

\(\frac{y-y_1}{x-x_1}=\frac{y_2-y_1}{x_{2-}x_1}_{}\)

where

\(x_2=0,x_1=-7,y_2=1,y_1=0\)

Then, we substitute the parameters into the formula above

\(\begin{gathered} \frac{y-y_1}{x-x_1}=\frac{y_2-y_1}{x_{2-}x_1}_{} \\ \frac{y-1}{x-(-7)}=\frac{1-0}{0-(-7)} \end{gathered}\)

Simplifying further, we have

\(\begin{gathered} \frac{y-1}{x+7}=\frac{1}{7} \\ 7(y-1)=x+7 \\ 7y-7=x+7 \\ 7y-x-14=0 \\ 7y=x+14 \end{gathered}\)

Then in the slope-intercept form, we have the equation as

\(y=\frac{1}{7}x+2\)

Therefore the equation of the line in the slope-intercept form is

y=(1/7)x +2

From 1980 to 2008, the number of federally insured banks could be approximated by B(t)=-328.2t+13716 where t is the year and t=0 corresponds to 1980.
How many federally insured banks were there in 1985?


Find the slope of the graph of B.


Interpret this slope as a rate of change. Choose the correct answer below.
The number of banks increased by 13716 banks per year
The number of banks decreased by 12075 banks per year
The number of banks increased by 328.2 banks per year
The number of banks increased by 12075 banks per year
The number of banks decreased by 328.2 banks per year
The number of banks decreased by 13716 banks per year


Find the y-intercept of the graph of B.
The y-intercept is


Interpret the y-intercept. Choose the correct answer below.
The y-intercept is the number of banks in 1985
The y-intercept is the maximum number of banks allowed in the country
The y-intercept is the minimum number of banks allowed in the country
The y-intercept is the number of banks in 2008
The y-intercept is the number of banks in 1980

Answers

Answer:

To find the number of federally insured banks in 1985, we need to substitute t = 1985 into the equation B(t) = -328.2t + 13716:

B(1985) = -328.2 * 1985 + 13716

B(1985) = -648537 + 13716

B(1985) = 7122

So, there were approximately 7122 federally insured banks in 1985.

The slope of the graph of B represents the rate of change. From the equation B(t) = -328.2t + 13716, we can see that the slope is -328.2. Therefore, the interpretation of the slope as a rate of change is: "The number of banks decreased by 328.2 banks per year."

The y-intercept of the graph of B represents the value of B when t = 0, which corresponds to the year 1980. From the equation B(t) = -328.2t + 13716, the y-intercept is 13716. Therefore, the interpretation of the y-intercept is: "The y-intercept is the number of banks in 1980."

Please Explain the Steps you take to get the answer and is my answer right.

Please Explain the Steps you take to get the answer and is my answer right.

Answers

The conclusion that can be drawn from the graph which shows the long - run relative frequency of 100 rolls of the die is B. The long - run frequency of rolling a 3 appears to be 0. 17.

What is the long - run frequency ?

The long-run frequency refers to the expected frequency of an event that would occur if a random experiment is repeated an infinite number of times. In other words, it is the probability of an event occurring in the long run or over a large number of trials. F

From the graph, we can see that when the number cube is rolled in the long term ( from 70 rolls ) the frequency of threes remains 0. 17. This shows that this frequency is the long - run frequency.

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Please help!!!!!!!!!!!!!

Please help!!!!!!!!!!!!!

Answers

Answer:

37, 3, 37

Step-by-step explanation:

2. CARS It took Lisa 85 minutes to wash three cars. She spent x minutes on each car and 10 minutes
putting everything away.
Solve 3x + 10 = 85 to find how long it took to wash each car.
(5 Points)
10
25
50/2
50-25

Answers

You have to divide 85 to 10 to get the answer

Select all the correct answers
Given circle o, diameter AB is drawn intersecting circle o at points A and B. Arc XY is drawn centered at B. Chords AX, AY, and XY are also drawn. Which statements are true about this construction?

Arc AX is congruent to arc AY

Arc X Y is a semicircle

Triangle AXY is an equilateral triangle

Arc BX is congruent to arc BY

Triangle AXY is a right triangle ​

Select all the correct answers Given circle o, diameter AB is drawn intersecting circle o at points A

Answers

The true statements about the construction are:

Arc AX is congruent to arc AYTriangle AXY is an equilateral triangleArc BX is congruent to arc BY

How to determine the true statements?

From the construction, we have the following highlights

Chords AX, AY and XY are congruent.

The above means that:

Arc XY and AY are congruentTriangle AXY is an equilateral triangleArc B and BY are congruent

Hence, the true statements are (a), (c) and (d)

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Answer:

Step-by-step explanation:

Select all the correct answers Given circle o, diameter AB is drawn intersecting circle o at points A

4: Find the slope:
(9, -10), (0,8)

Answers

Answer:

-2

Step-by-step explanation:

Using the slope formula (y1-y2)/(x1-x2), the slope of the line is (-10-8)/(9-0), which is equal to (-18)/9= -2.

Slope of the given coordinates (9,-10) and (0,8) is -2.

What is slope of the line?

In Mathematics, a slope of a line is the change in y coordinate with respect to the change in x coordinate.

The net change in y-coordinate is represented by Δy and the net change in x-coordinate is represented by Δx.

Hence, the change in y-coordinate with respect to the change in x-coordinate is given by,

m = change in y/change in x = Δy/Δx

Where “m” is the slope of a line.

Given, coordinates of the two points,

(x₁ , y₁) = (9, -10)

(x₂ , y₂) = (0, 8)

slope m = (y₂ - y₁)/(x₂ - x₁)

             = (8 - -10)/(0 - 9)

             = (8 + 10)/-9

             = 18/-9

slope m = -2

Hence, -2 is the slope for given coordinates (9,-10) and (0,8).

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Identify horizontal or vertical compression stretch of the function g(x) = 6x

Answers

Answer:

dhjfydhftb7cuvdihcdjxuihy

Students at Sunnyvale Middle School volunteered to work a 2-hour shift at a
car wash fundraiser. The table shows the number of people who worked each
shift and how many cars they washed.
Is the relationship between the number of
cars washed and the number of workers
proportional? Complete the statement.
The number of cars washed per person
?
of workers, so the relationship is
the same for each number
?
People Working
4
6
8
10
Cars Washed
8
12
20
25

Answers

The relationship in this problem is not proportional, as there are different ratios between the number of people and the number of cars washed.

What is a proportional relationship?

A proportional relationship is a relationship in which a constant ratio between the output variable and the input variable is present.

The equation that defines the proportional relationship is a linear function with slope k and intercept zero given as follows:

y = kx.

The slope k is the constant of proportionality, representing the increase or decrease in the output variable y when the constant variable x is increased by one.

The ratios between the output and the inputs are given as follows:

8/4 = 2.12/6 = 2.20/8 = 2.5.25/10 = 2.5.

Different ratios, hence the relationship is not proportional.

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find the nth term of this quadratic sequence
2, 8, 18, 32, 50,

Answers

75 is the next term

Need help with a,b,c please

Need help with a,b,c please

Answers

9514 1404 393

Answer:

  a) y = 0 +3x

  b) 3; the line rises 3 units for each unit to the right

  c) (0, 0); the line crosses the y-axis at y=0

Step-by-step explanation:

a. The y-intercept is the point on the y-axis where the line crosses. That point is (0, 0). The y-coordinate there is the value of b in the equation.

The slope is the ratio ...

  m = rise/run

The points marked are separated by 3 units vertically for each 1 unit horizontally. Points on the right are above those on the left, so the "rise" is positive for a positive "run".

  m = 3/1 = 3

Then the equation is ...

  y = 0 + 3x

__

b. The slope is 3. It is the ratio of rise to run.

__

c. The y-intercept is 0. It is the y-coordinate of the point where the line crosses the y-axis.

Bigco Corporation is one of the nation’s leading distributors of food and related products to restaurants, universities, hotels, and other customers. A simplified version of its recent income statement contained the following items (in millions).
Cost of sales $ 11,571
Income taxes 249
Interest expense 23
Net earnings 1,442
Sales 16,400
Earnings before income taxes 1,691
Selling, general, and administration expense 3,543
Other revenues 428
Total expenses (excluding income taxes) 15,137
Total revenues 16,828
Prepare an income statement for the year ended June 30, current year. (Hint: First order the items as they would appear on the income statement and then confirm the values of the subtotals and totals.)

Answers

Step-by-step explanation:

I hope this answer is helpful ):

Bigco Corporation is one of the nations leading distributors of food and related products to restaurants,

A small business owner contributes $1000 at the end of each quarter to a retirement account that earns 4% compounded quarterly.A) How long will it be until the account is worth $150,000?B) Suppose when the account reaches $150,000, the business owner increases the contributions to $8,000 at the end of each quarter. What will the total value of the account be after 15 more years?

Answers

Answer:

ttttttyyyyyyyyyhghhh

help me please I do not know what to do​

help me please I do not know what to do

Answers

Answer:

  (a)  5 : 8 < 7 : 10

  (b) 9/6 = 36/24

Step-by-step explanation:

(a)

Perhaps simplest to explain is the use of a common denominator: 40.

  \(5 : 8 = (5\cdot5):(8\cdot5)=25:40\\\\7:10=(7\cdot4):(10\codt4)=28:40\\\\25:40 < 28:40\quad\leftrightarrow\quad\boxed{5:8 < 7:10}\)

__

Other ways you can do this comparison are ...

  Multiply by 8·10 = 80, the product of the denominators:

     5·10 = 50 < 7·8 = 56

  Convert the fractions to decimal:

     5/8 = 0.625 < 7/10 = 0.700

__

(b)

Remove a factor of 4 from the second fraction:

  \(\dfrac{9}{6}\text{ and }\dfrac{36}{24}\quad\leftrightarrow\quad\boxed{\dfrac{9}{6}=\dfrac{9\cdot4}{6\cdot4}}\)

For what value of q is the equation –13(q + 4) = 7q+ 16 true?

Answers

Answer:

q = \(-\frac{17}{5}\)   or -3.4

Step-by-step explanation:

16 families went on a trip which cost them Rs 2,16,352. How much did each
family pay?

Answers

Given that 16 families went on a trip and the cost of the trip was Rs. 2,16,352.The amount paid by each family is to be determined by unitary method Hence each family paid Rs.13522

Now, let's solve this by using the method of unitary method. To find the cost of 1 family trip, we will divide the total cost of the trip by the number of families.2,16,352 / 16 = 13,522 So, the cost of the trip per family is Rs. 13,522.Hence, each family paid Rs. 13,522 for the trip.

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Answer:

Step-by-step explanation

1. The total cost of the trip for all 16 families is Rs 2,16,352.
2. To find out how much each family paid, we need to divide the total cost by the number of families: Rs 2,16,352 ÷ 16.
3. When we do the division, we get the result: Rs 13,522.

Now let's check if this result is correct:

1. If each family paid Rs 13,522 for the trip, then the total cost for all 16 families would be: 16 × Rs 13,522 = Rs 2,16,352.
2. This is exactly the same as the total cost given in the problem statement.

So we have shown that each family paid **Rs 13,522** for the trip

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