A certain standardized test measures students’ knowledge in math and English. The scatterplot displays the scores for 10 randomly selected students.


The equation y = 54.16 + 0.87x is called the least-squares regression line because it:


is least able to make accurate predictions for the data.

makes the sum of the squared residuals as large as possible.

makes the sum of the squared residuals as small as possible.

causes the relationship between English scores and math scores to be strongest.

A Certain Standardized Test Measures Students Knowledge In Math And English. The Scatterplot Displays

Answers

Answer 1

Answer:

it's C

Step-by-step explanation:

Answer 2

The correct answer is: The equation y = 54.16 + 0.87x is called the least-squares regression line because it makes the sum of the squared residuals as small as possible.

The least-squares regression line is a line that best fits the given data points by minimizing the sum of the squared residuals. Residuals are the vertical distances between the actual data points and the predicted values on the regression line. By minimizing the sum of the squared residuals, the line is able to provide the best overall fit to the data.

Therefore, the least-squares regression line aims to minimize the differences between the predicted values and the actual data points, making the sum of the squared residuals as small as possible.

Learn more about least-squares regression line here

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Related Questions

PLEASE HELP I DONT UNDERSTAND WILL GIVE LIKE 20 POINTS

Answers

Answer:

Step-by-step explanation:

11/4 <3

Answer:

11/4

Step-by-step explanation:

Hope this helps!


d) What is the y-intercept of the roof? Describe where the peak of the roof is on
the x-y plane

Answers

I need a picture or some information about the roof to help

The point Q (5,3) is translated 2 units left. What are the coordinates of the resulting point Q

Answers

Answer:

(3,3)

Step-by-step explanation:

Since it's to the left, and not up or down at all, the y-value does not change. The x-value, however, is affected. Since it's to the left, it is decreasing in value by 2 points. If it were to the right, it would increase in value to (7,3), since it'd be going further away from (0,0).

Answer:

Q  = (3,3)

Step-by-step explanation:

Moving the point left moves the x value down 2.

5-2=3

Therefore, Q = (3,3)

HELP PLS UHM 15 POINTS AND Brainliest

Answers

Answer:

(0,2)

Step-by-step explanation:

The intercept is the part of the line touching the quadrat.

Answer:

B (0,2)

Step-by-step explanation:

Because if its on the red line on the y axis its 2.

Mae Ling earns a salary of $360 plus a 8.0% commission on sales at a gift shop. How would she make in a week if she sold $4,900 worth of merchandise.

PLEASE HELP I WILL MARK BRAINLIEST PLEASEE

Answers

$752

4,900 x .08 = 392
392 + 360 = 752

answer

757

Step-by-step explanation:

I just know made a A on the test

Factor the following trinomial completely, or state that the trinomial is prime.
3x^2+10xy + 8y^2

Answers

Answer:

(3x + 4y)(x + 2y)

Step-by-step explanation:

3x^2+ 10xy + 8y^2

All signs are positive, so we'll only look at positive factors of 3 and 8.

3 factors into 3 and 1.

8 factors into 4 and 2, and it also factors into 8 and 1.

I like to try closer factors in value, so I'll start with 4 and 2 for 8.

Try:

(3x + 2y)(x + 4y) = 3x^2 + 12xy + 2xy + 8y^2 = 3x^2 + 14xy + 8y^2

The middle term does not work. Switch 2y and 4y and try again.

Try:

(3x + 4y)(x + 2y) = 3x^2 + 6xy + 4xy + 8y^2 = 3x^2 + 10xy + 8y^2

It works.

Answer: (3x + 4y)(x + 2y)

Please help me find the equivalent fractions!

Answers

Answer:

7/9 = 14/18

4/10 = 16/40

3/12 = 9/36

8/10 = 4/5

12/16  = 6/8

18/21 = 6/7

Step-by-step explanation:

Answer:

7/9 is equivalent to 14/18

4/10 is equivalent to 16/40

3/12 is equivalent to 2/8

8/10 is equivalent to 4/5

12/16 is equivalent to 6/8

18/21 is equivalent to 6/8

Find the answer for x.

Answers

Answer:

x=25

Step-by-step explanation:

since this is a triangle you would add up all the measure of this and set it equal to 180. 90 is the side with the box. so it would be 2x+15+x+90=180 then solve for x and you would get your answer.

The height of a stack of boxes varies directly with the number of boxes. A stack of 12 boxes is 15 feet high. How tall is a stack of 16 boxes.​

Answers

Answer:

20 boxes

Step-by-step explanation:

12 boxes is 15 feet so 4 boxes is 5 feet

Select all that apply.

Which of the following name an angle in the drawing?

Answers

Answer:

ECB and CDE

Step-by-step explanation:

the others arent the same

1:Write 2 whole numbers that are less than 941,020

Answers

Answer:

900,000500,000

Step-by-step explanation:

There are lots of numbers that are less than 941,020

( Exactly 941,019 without Negative Numbers )

( If Negative Numbers are involved, it's infinity )

Hope this helps! <3

Answer:

5 and 9303 (Those are just examples)

Step-by-step explanation:

You can choose any number that is below 941,020, and hs no decimal places, so 0, 6, 930, and 90493 all work.

HELP PLS. What information do you need to graph a linear function?

Answers

you need two points, like x and y intercepts for example. determine the x intercept, set f(x) =0 and solve for x.

what property is 4x + 8 = 28

Answers

Answer:

x=5

Step-by-step explanation:

4x + 8 = 28,

it's rather straight forward,

you would subtract 8 from the left side,

doing the same on the right.

now you have

4x = 20

x= 20/4

x=5

hope this helps.

I’ve tried but I don’t know what it is please help

Answers

Answer: x=11

Step-by-step explanation:

I got this by 126-49=77. Then I divided 77 by 7 and got 11.

Can someone please help me with this question? I don’t know what the answer is and I’m not sure

Answers

Answer:

you're right

Step-by-step explanation:

I checked by writing the first 5 terms

a1: 5

a2: 8

a3: 11

a4: 14

a5: 17

and then checked using the function to see if they matched up and they did

If a player had the following cards what is the value of his hand?

Answers

Wut r the following cards

the value of 1 by 3- 1 by 2=

Answers

Answer:

the value of 1 by 3- 1 by 2 is 1

Step-by-step explanation:

it is one because 1 by 3 is 1*3

that equals to 3

then you do 1 by 2 (aka 1*2)

then it is 3-2 which equals to 1

Error Analysis: Find, describe & correct the error that a student has made while solving the equation: LaTeX: 4=-2\left(x-3\right)4 = − 2 ( x − 3 ) Step Number Equation 1 LaTeX: 4=-2\left(x-3\right)4 = − 2 ( x − 3 ) 2 LaTeX: 4=-2x-64 = − 2 x − 6 3 LaTeX: 4+6\:=\:-2x\:-\:6\:+\:64 + 6 = − 2 x − 6 + 6 4 LaTeX: 10\:=\:-2x10 = − 2 x 5 LaTeX: \frac{10}{-2}=-\frac{2x}{-2}10 − 2 = − 2 x − 2 6 LaTeX: -5=x

Answers

Given:

[tex]4=-2\left(x-3\right)[/tex]

To find:

The error that a student has made while solving the equation.

Solution:

We have,

[tex]4=-2\left(x-3\right)[/tex]

Using distributive property, we get

[tex]4=-2(x)-2(-3)[/tex]

[tex]4=-2x+6[/tex]

Subtract 6 from both sides.

[tex]4-6=-2x+6-6[/tex]

[tex]-2=-2x[/tex]

Divide both sides by -2.

[tex]1=x[/tex]

The value of x is 1.

In step 2, the distributive property is not used properly because when -2 is distributive with -3 then we get 6 instead of -6.

Therefore, the student has made error in step 2.

Solve for x: −2(x + 3) = −2x − 6 NEED HELP PLZ:(

A: 0
B: 3 C:All real numbers
D:No solution

Answers

Answer:

The answer is C:All real solutions

Step-by-step explanation:

here are the steps in case u need them :)

Step 1: Simplify both sides of the equation.

−2(x+3)=−2x−6

(−2)(x)+(−2)(3)=−2x+−6(Distribute)

−2x+−6=−2x+−6

−2x−6=−2x−6

Step 2: Add 2x to both sides.

−2x−6+2x=−2x−6+2x

−6=−6

Step 3: Add 6 to both sides.

−6+6=−6+6

0=0

Answer:

C: All real numbers.

Step-by-step explanation:

-2 ( x + 3 ) = -2x -6

-2 times x, -2 times 3

-2x -6 = -2x -6

Add 6

-2x -6 +6 = -2x -6 +6

-2x = -2x

same as....

0 = 0

1. − p + 6p ≤ 4 + 6p

Answers

Step-by-step explanation:

-p + 6p <_ 4 + 6p

5p <_ 4 + 6p

-4 <_ p

-4 less than or equal to p

Credit card A is running a promotion where they will charge 0% interest for the first year, and then 0.8% compounded continuously after that. Credit card B has an interest rate of 0.7%, also compounded continuously. If you are going to make a $500 purchase and plan to not make a single payment for 2.5 years, which credit card should you go with? Write the equation showing the total balance at the end of 2.5 years for that card. How much money invested at 5% compounded continuously for 3 years will yield $820

Answers

Answer: 0.1

Step-by-step explanation:

your going to substact credit card a and b and then what ever you get will be your answer

Explain how do you know whether the relationship between two quantities is a proportional relationship. *

Answers






Two quantities have a proportional relationship if they can be expressed in the general form y = kx, where k is the constant of proportionality. In other words, these quantities always maintain the same ratio. That is, when you divide any pair of the two values, you always get the same number k.

A number is in expanded form: (9 x 10) + (6 x 1) + (2 x 1/100) + (3 x 1000) What is the number is standard form?

Answers

Answer:

96.023 is the answer yeah

QUESTION 1, Saturday, October 10th, 2020

I have some geometry questions today. Please include your thoughts or reasoning with your answer. Please ignore the answer I selected for it was not an purpose. Thanks!

Answers

Answer:

Hi in my opinion ur answer means option 2 SAS is correct

Answer:

SAS

Step-by-step explanation:

The triangles have one side congruent, one side common = congruent and the angle between them congruent

It is Side, Angle, Side = SAS


The area of a square is 49 square feet. What is the
perimeter of the square?
A 7 ft
B 28 ft
© 12.25 ft
D 24.5 ft

Answers

28
4 (side of the square) x 7

PLEASE HELP I AM BEING TIMED!


In the Diagram Angles B and C are_____?


Options: Right

Similar

Congruent

Obtuse

Answers

Answer: C.) Congruent (or third option)

The graph shows a proportional relationship. Which equation matches the graph?

Answers

Answer is y=2x because when you look at graph it’s clear

Answer: y=2x

Step-by-step explanation:

Using Oliver’s table, how can you find the unit rate?

Answers

Answer:

Is there a table I can see if I'll be able to help

Answer:

Oliver’s table indicates that for every increase of 2 strides, the distance he travels increases by 7 feet. So, the change in distance divided by the change in stride gives the unit rate.

Step-by-step explanation:

This Is The Sample Answer

When x+2 = 1/5y is written in standard form, what is the value or B

Answers

Answer:

B=-1

Step-by-step explanation:

Standard form is Ax+By=C.

In this case, Ax is x, By is 1/5y, and C is +2.

To isolate the 2 (the C), subtract x from both sides of the equation:

x+2=1/5y

-x     -x

2=-x+1/5y.

Now, the value of B, the x value, is -1.

The original rectangle is 9 feet long and 3 feet wide. The
new rectangle is 1 foot wide. What was the scale factor to
go from the original rectangle to the new rectangle?

Answers

I don’t rly understand the question 1 foot
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