A statistics teacher was interested in the relationship between the number of days students waited to start a project and the score that project received (out of 100 points). Information was collected on several students and was used to obtain the regression equation ŷ = –3.64x + 96.5, where x represents the number of procrastination days and ŷ is the predicted grade. Which statement best describes the meaning of the y-intercept of the regression line?

AWhen the grade is 0, the predicted number of procrastination days is 0.
BWhen the grade is 0, the predicted number of procrastination days is 96.5.
CWhen the number of procrastination days is 0, the predicted grade is 3.64 points.
DWhen the number of procrastination days is 0, the predicted grade is 96.5 points.

Answers

Answer 1

Answer:

The best option is: When the number of procrastination days is 0, the predicted grade is 96.5 points.

Option D is correct option.

Step-by-step explanation:

The regression equation given is: [tex]y= -3.64x + 96.5[/tex]

where x represents the number of procrastination days and ŷ is the predicted grade.

Which statement best describes the meaning of the y-intercept of the regression line?

First we need to identify what is y-intercept in regression line.

The y-intercept of the regression line is the value of output y when x is 0.

So, when x = 0, the value of output is y-intercept

So, if x = 0

we get:

[tex]y= -3.64x + 96.5\\y= -3.64(0) + 96.5\\y=0+96.5\\y=96.5[/tex]

So, the best option is: When the number of procrastination days is 0, the predicted grade is 96.5 points.

Option D is correct option.

Answer 2

Answer:

i just did the test, the person above me is correct!

Step-by-step explanation:


Related Questions

A plumber uses the expression 48 + 25h to determine the number of dollars to charge each customer. If h= 2.5, how much does the customer pay

Answers

Answer:

$110.5

Step-by-step explanation:

48 + 25(2.5)

48 + 62.5

=110.2

Answer:

The answer is 110.5

Step-by-step explanation:

48+25(2.5)=110.5

5 students made an A in their Math quiz, 10 students made an B, 6 students made an C,
3 students made a D, and one made an F,
their are 25 students in this class

which are true select all that apply

A. For this math class, 10% of all students received an F
B. for this math class, 6% of all students received a C
C. for this math class 20% of all students received an A
D. the part -to-whole ratio of students who received a B is 10 : 25.​

Answers

Answer:

I think is C.............

Find
how
many times
21
+
9 goes
into 131
2​

Answers

Answer:

it goes in 4 times I rounded up to 30 and 30 times 4 is around there

PLZ HELP PLZ HELP PLZ HELP PLZ HELP PLZ HELPPLZ HELP

Answers

Answer:

$22,100

Step-by-step explanation:

20 x 25 = 500

10 x 18 = 180

500 + 180 = 680

680 x 32.50 = 22,100

plz give me brainliest and hope this helps

Find the equation of the line that goes through the points (-2, 5) and (3, 1).

Answers

Answer:

y=-4x+13 this is what i think

Step-by-step explanation:

what is 7/9 - 1/3 simplified

Answers

Answer:

4/9 is the answer

Step-by-step explanation:

you're welcome

Lin runs 12 laps around a track in 15 minutes.

Answers

Answer:

1.25

Step-by-step explanation:

15/12

They earned 12% of 5,000 in sales. How much did they get paid

Answers

Answer: 600

explanation:

12% of 5,000 = 600

80 is what percent 300 ( please explain)

Answers

it’s about 26.67%... hope this helps!

(80×100):300=

8000:300=26.67

so 80 percent of 300 is 26.67

PLZ ANSWER IF U KNOW THE ANSWER​

Answers

Answer:

-5, 2

9, 2

2, -5

2, 9

Step-by-step explanation:

Just count units above, below, to the right, and to the left.

Help!

1. What is the slope of PA?

2. What is the slope of line N?

Answers

1. 3/4
2. 4/3

HOPE THAT HELPS!!

Gianna cuts a ribbon into equal pieces as shown below. She uses 4 pieces of the ribbon for a project. What fraction of the ribbon does Gianna use for the project? Explain how you found your answer.

Answers

1/4

ONE of the FOUR total pieces was used.

what is the slope and y intercept of y=4x-5

Answers

Answer:

theres is your answer

Step-by-step explanation:

Explanation: y=4x−5 is in the form of the slope-intercept formula for a linear equation, y=mx+b , where m is the slope and b is the y-intercept. By definition, the y-intercept is −5 .

Which expression is equivalent to 16a -18b + 20a

A.(16 + 20)a + 18b
B.(16 + 20)a - 18b
C.(16 - 20)a + 18b
D. 16a - (20a + 18b)

Answers

B) (16 + 20)a - 18b

16a and 20a are both positive and 18b is the only negative it’s easier to add the positive with each other then the negative and a positive then add other positive

A quadratic function y = f(x) is plotted on a graph and the vertex of the resulting
parabola is (6, -3). What is the vertex of the function defined as
g(x) = f(-x) - 3?

Answers

Answer: (-6, - 6)

Step-by-step explanation:

Here we have two transformations, and the first step will be to explain those transformations:

Reflection over the y-axis.

For a function f(x), the reflection over the y-axis is written as:

g(x) = f(-x)

Then if we initially had a point (x, y), the transformed point will be (-x, y).

Vertical translation.

We can define a vertical translation of N units as:

g(x) = f(x) + N

if N > 0, the translation is up.

If N < 0, the translation is down.

Then if we start with a point (x, y), the transformed point will be (x, y + N)

In the case of this problem we have g(x) = f(-x) - 3

This means that N = -3

Then if we initially had the vertex at the point (6, - 3)

The transformed point will be: changing the sign of the x-component and subtracting 3 in the y-component, then the transformed vertex point is:

(-6, -3 - 3) = (-6, - 6)

The vertex of the resulting  parabola will be (-6, -6)

Rule of reflection

Given the function y= f(x), plotted on a graph and the vertex of the resulting

parabola is (6, -3), if this coordinate is reflected over the y-axis, the reflection rule will be:

[tex](x,y) \rightarrow (-x, y)[/tex]The coordinate (6, -3) under this translation will give (-6, -3)

To get the corresponding function [tex]g(x) = f(x) - 3\\[/tex]

[tex]g(x) = [(-6, -3) - 3]\\g(x) = (-6, -3-3)\\g(x) =(-6, -6)[/tex]

Hence the vertex of the resulting  parabola will be (-6, -6)

Learn more on reflection here: https://brainly.com/question/14460986

What is 3/4 divided by 1/8? Express your answer in the simplest form.

Answers

Answer:

6

Step-by-step explanation:

The monthly expenditures on food by single adults in one city are monthly distributed with a mean of $410 and a standard deviation of $70

Answers

Answer:

is the whole question asked?

What is 4/9 rounded to it's closest estimate

Answers

Answer:

1/2

Step-by-step explanation:

4/9 is .444

1/2 is .5

1/3 is .3333

4/9 is closer to being 1/2 than 1/3

Answer:

0.4

Step-by-step explanation:

[tex]\frac{4}{9}[/tex] ≈ 0.4

Which sum or difference is modeled by the algebra tiles

Answers

Answer:

i believe the answer that you picked is right ....i think ^^

Ginger cut 9 yards of fabric into pieces that are yard long. How many -yard pieces did she make from the 9 yards of fabric?
A. 2 1/4
B. 8 3/4
C. 13
D. 36

Answers

Answer:   c i think                                                      

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

PLEASE I NEED HELP WITH MATH!

Answers

Answer:

m<x= 53

Step-by-step explanation:

m<x = m<y

so...

all you do is 180-128= 53

because m<z = m<y too

and the m<z+128=180

qustion to give kagimatoby a brainly

Answers

Answer:

wdym

Step-by-step explanation:

(EASY) Which best describes the relationship between the lines?

Answers

Perpendicular. Also if it’s “easy” then maybe try to do it.

How would you wright this as a decimal number ?

Answers

Hi there! :)

[tex]\large\boxed{-8.4}[/tex]

We can calculate the decimal by converting the fraction to an improper fraction, then dividing.

Derive the inpromper fraction by:

[tex]a\frac{b}{c} = \frac{c * a + b}{c}[/tex]

In this instance:

[tex]-8\frac{2}{5} = \frac{-8* 5 -2 }{5} = \frac{-42}{5}[/tex]

Divide:

-42 ÷ 5 = -8.4.

p(n) = -8n^2 + 9n, Find p(10)

Answers

Answer:

first

put the value of p(10) in the place n,

2-multiply -8×10^2+9×10

3-:- -8×100+90

4:-800+90=710ans

If the population of a certain county was 100,000 in 1998 and 110,429 in 2008, and if the formulay = P0ehtapplies to the growth of the county's population, estimate the population of the county in 2023. (P0 is the initial population. Round your value of h to four decimal places. Round your answer to the nearest whole number.)

Answers

Answer:

126807 people

Step-by-step explanation:

Given;

P= Poe^ht

Where;

P= population at time t

Po= population at the beginning

h= growth constant

t= time

1998- 2008 is ten years.

110429= 100,000e^10h

1.1 = e^10h

ln(1.1) = lne^10h

0.095 = 10h

h= 0.0095

In 2023, t = 25 years

P= 100,000e^(0.0095 × 25)

P= 126807 people

Pedro y su hijo tienen juntos 55 años , si Pedro es 25 años mayor que su hijo ¿Cuál es la edad de Pedro? rapido plox

Answers

Answer:

30?...creo que esa es la respuesta

Step-by-step explanation:

55-25=30

Plzzzzzz help answer this question ASAP

Answers

Answer:

1. Not possible

2. Possible

3. Possible

4. Possible

Step-by-step explanation:

Will mark brainliest.

Answers

Answer:

integer

natural

whole

rational

Step-by-step explanation:

integer

natural

rational

real

whole

A hot air balloon can hold up to 300 pounds of weight. The balloon's pilot weighs 140 pounds. How many 20-pound bags of sand (b) can also be carried by the hot air balloon? Select three options.

–2
0
5
8
10


It's these since none of the others are correct are 0,5, and 8. Otherwise known as B,C,and D

Answers

Answer:

8 sand bags

Step-by-step explanation:

300 - 140 = 160

160 ÷ 20 = 8

8 sand bags of 20-pounds each.

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