pre-statistics and statistics course grades: we recorded the pre-statistics course grade (in percentage) and introductory statistics course grade (in percentage) for 60 community college students. scatterplot with its regression line suppose a struggling student who is currently taking pre-statistics and not passing (60%) wants to predict his introductory statistics course grade. should the regression line be use to make this prediction?

Answers

Answer 1

Regression line be used to make this prediction taking into account other factors like Linearity assumption, Outliers, Homoscedasticity assumption, Independence assumption.

To determine whether the regression line should be used to make a prediction for the struggling student's introductory statistics course grade, we need to consider a few factors.

Linearity assumption: The regression line assumes a linear relationship between the pre-statistics and introductory statistics course grades. We should examine the scatterplot to assess whether the relationship appears to be reasonably linear. If the scatterplot shows a clear linear trend, then the regression line may be appropriate for prediction.

Outliers: Check for any influential outliers that may significantly affect the regression line. Outliers can distort the line and lead to inaccurate predictions. Remove any outliers if necessary.

Homoscedasticity assumption: The regression line assumes constant variance of the residuals across all levels of the predictor. If there is a consistent spread of residuals throughout the range of pre-statistics grades, it supports the use of the regression line for prediction.

Independence assumption: Ensure that the data points are independent of each other. If there are any dependencies or confounding factors, the regression line may not accurately predict the struggling student's grade.

Considering these factors, if the scatterplot shows a reasonably linear relationship, there are no influential outliers, there is a consistent spread of residuals, and the data points are independent, then the regression line can be used to make a prediction for the struggling student's introductory statistics course grade. However, it is important to note that regression predictions are not perfect and should be interpreted with caution. Other factors, such as effort, study habits, and external circumstances, can also influence the student's grade.

Learn more about Linearity assumption here:

https://brainly.com/question/30409637

#SPJ11


Related Questions

How do I do this??? Sorry for my sloppy hand writing I’m in a rush...and can someone pls tell me if I’m doing this right???

Answers

Lauren jogs at a rate of 2 miles every 2/5 hour. What is her unit rate in miles per hour?

There are a couple of ways to do this. I’ve put one in the picture. Let me know if you have more questions.

1) Resolva as expressões numéricas. Não esqueça de deixar os cálculos.
a) 2 + 8-3-5 + 15 =
b) 12 + (35 - (10 + 2) +2] =
c) [(18+32) + 8 +5 3] + 6 =
d) 37 + (-25 - (-11 + 19 - 4)] =
e) 60 = {2 • (-7 + 18 = (-3 + 12)]} - [7 • (-3) - 18 = (-2) + 1) =
f) -8 +{-5 + [(8-12) + (13 + 12)] - 10) =​

Answers

Answer:

a=17

b=37

c=117

d=8

e=

f=-2

Answer the photo below thanks

Answers

Answer:

You're right, the answer is C.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

I am not sure if it is B or C, but I can say that it is not A since the figure in A is rotated. Figure in B kinda looks like a reflection then C because if the figures were translated then the corner should be at one side. Sorry if that kinda confused you, but I added a picture of what I am trying to say for the figure in option B. I guess it is C.

Hope this helps, thank you !!

The candy store has a stock of candy. They have 15 bags of tootsie rolls, 10 boxes of nerds, 12 bags of gummy
bears, 5 bags of M&M's and 22 bags of skittles. Find the ratio of nerds to skittles. Be sure to simplify.

Answers

Answer:

ratio of nerds to Skittles

= 10:22

= 5:11

y=8x+b
8 x 2+76=92
What is the solution to the system of equations?

Answers

Answer:

31. 3-(4+7)/8 33. 2/(3+x)-x*y^2. 35. 3.1x^ 3-4x^(-2)-60/(x^2-1) 37. (2/3)/5. 39. ... 31. a. x(2 + 3x) b. x = 0, −2/3 33. a. ... No; the associated system of equations still.

Is that what you wanted? I hope it is

11. If AB = BC and BC = CD, which property shows AB = CD?

Answers

Answer:

i belive its the transitive property

sry if im incorrect

Select the two points that the line would go through. Practice on a piece of paper in front of you.

(1,-3)

(4,1)

(6,3)

(2,-2)​

Answers

Answer:

(1,-3), (2,-2)​

Step-by-step explanation:

The graph passes through (3, -1) and (0, -4)

The slope is:

(-4 - (-1))/-3 = -3/-3 = 1

The y-intercept is given: -4

The line is:

y = x - 4

See the graph

The points plotted as well and those on the line are:

(1,-3)(2,-2)​

the supplement of a 65° angle has a measure of​

Answers

Answer:

115 degrees

Step-by-step explanation:

supplementary angles add up to 180 degrees, so if x is the angle you're trying to have you get:

[tex]x + 65 = 180\\x = 115[/tex]

Which values of a and b make the following equation true?

Answers

Answer:

a=11 , b=7

Step-by-step explanation:

When integer multiply with integer, the base were same, then we just add both powers.

for example

[tex]x {}^{2} \times {x}^{3} = {x}^{2 + 3} = {x}^{5} [/tex]

If you are making broccoli cheese soup the ratio of cheese to broccoli to broth is 5:6:10 if there is 100 parts broth how many of each ingredient should you use

Answers

Answer: See explanation

Step-by-step explanation:

Since there are 100 parts broth, the number to use for each ingredients will be:

Cheese = 5 × 100/10 = 5 × 10 = 50

Broccoli = 6 × 100/10 = 6 × 10 = 60

Broth = 100

Pls help me with this math problem

Answers

Answer:

12 ima shoot u

Step-by-step explanation:

HEY GUYS PLS HELP (kinda easy tho)

Answers

Answer:

74

Step-by-step explanation:

13 5-peso coins

9 1 peso coins

13 X 5 = 65

9 X 1 = 9

65+9 = 74

finding value of x. PQR
P- 2x°
3
3
3

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Equilateral Triangles.

Since, we know that, all the sides of a triangle are equal, hence it is a Equilateral triangle.

Equilateral triangle has one all angles equal to 60°.

so, major angle P = 60°

hence, 2x=60°

===> x = 30°

Which is the simplified form of the expression below? 6w + 23 + 3w A. 3w+23 B. 6w+3w C. 6w+23 D. 9w+23

Answers

Answer:

D, 9w + 23

Step-by-step explanation:

Add like terms.

2. it's not B
Write a rule for the linear function shown in the graph.



A. y = -5/2x - 1

B. y = 3x – 1

C. y = 2/5x + 1

D. y = 5/3x + 1

Answers

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( 0 ,   1 )

Equation Form:

x = 0 ,     y = 1

Step-by-step explanation:

Graph.

y = − 5/ 2 x − 1

y = 3 x − 1

y = 2/ 5 x + 1

y = 5/ 3 x + 1

The diagram at right shows a regular
hexagon
What is the area of the shaded region?
Round your answer to the nearest tenth.
I
20
20
Apothem Length: 10,3

Answers

Answer:

Nice

Step-by-step explanation:

Given that ABCD is a parallelogram. Find the following

Answers

Answer:

m=8

m<A=83

m<D=97

Step-by-step explanation:

Angles that are opposite of each other in a parallelogram are equal. Knowing this, we can first conclude that angle A and angle C are equal. We can set up the following equation:

[tex]9m+11=8m+19[/tex]

Subtract both sides by 11

[tex]9m+11-11=8m+19-11\\9m=8m+8[/tex]

Subtract both sides by 8m

[tex]9m-8m=8m+8-8m\\m=8[/tex]

To calculate angle A, plug the value of m into its expression.

[tex]<A=9m+11\\<A=9(8)+11\\<A=72+11\\<A=83[/tex]

In a parallelogram, angles that share a side are supplementary, meaning they add up to 180 degrees. Therefore, angle A and angle D are supplementary. Knowing this, we can set up the following equation:

[tex]180=83+D[/tex]

Subtract both sides by 83

[tex]180-83=83+D-83\\97=D[/tex]

I hope this helps!

What is the radius and diameter of the following circle?

Answers

Answer:

radius=7.5, diameter=13

Step-by-step explanation:

diameter is the length across a circle through the middle, and it is given in the picture. radius is half of the diameter

cuántos encuentros son necesarios para una entrevista completa​

Answers

4 encuentros,creo Ó 2 encuentros.Pero yo creo que 4

NEED HELP ASAPPPPPP PLZZZZZ
Right one paragraph on
What is factoring by using GCF?

Answers

Answer:

GCF is the largest factor that all terms have in common.

A toy store had 789 games.
It sold 53 of these games.
How many games are at the store now?
I games
?

Answers

Answer:

736 games are at the store now

Step-by-step explanation:

789-53=736

Answer:

736

Step-by-step explanation:

789-53=736

A local little league has a total of 60 ​players, of whom 40​% are left​-handed. How many left ​- handed players are​ there?

Answers

Answer:

24 players

Step-by-step explanation:

Answer:

24. 60 X 4/10 is 24

Step-by-step explanation:

Please help!

If these two shapes are similar, what is the measure of missing length h?

Answers

Answer:

5

Step-by-step explanation:

CAN YALL HELP!!!!!!!!!!!!! 8TH GRADE

Answers

Answer:

C

The others are irrational numbers. C can be a rational number.

PLEASE HELP!!! ILL GIVE BRAINLIEST, EXPLAIN YOUR ANSWER PLEASE

Answers

Answer: -20v^3 - 30x^2 +20

Step-by-step explanation:

simply multiply each term inside of the parentheses by -5.

Answer:

20v³ + 20 - 30x²

Step-by-step explanation:

multiply -5 by all three terms inside parentheses

(-5)(-4v³) + (-5)(-4) + (-5)(6x²)

20v³ + 20 - 30x²

The number 6545 can be written as a product of a pair of positive two digit integers. What are these two integers?

Answers

Answer:

77 and 85

Step-by-step explanation:

Since the number 6545 ends in a 5, we can assume that one of the two digit numbers ends in a 5. I tried 55, 65, 75, and 85, and I just divided 6545 by those numbers until I got a two-digit positive integer as my answer,

85 * 77 = 6545

Therefore, the answer is 85 and 77.

I hope this helps!

A water rocket is launched froni a platform. The height,
h in metres, of the water rocket at time & seconds after
it is launched is h= -212 + 74 + 4. When does the water
rocket hit the ground?​

Answers

Answer:

4.41seconds later

Step-by-step explanation:

Let the equation of the height reached by the water front be h = -2t^2+7t+4

The water hits the ground at h =0

Substitute

0 =  -2t^2+7t+4

-2t^2+7t+4 = 0

2t^2 - 7t - 8 = 0

t = 7±√(-7)²-4(2)(-8)/2(2)

t = 7±√49+64/4

t = 7±√113/4

t = 7±10.63/4

t = 7+10.63/4

t = 17.3/4

t = 4.41s

Hence the water hit the ground 4.41seconda later

If x= 1/3 is one of the solutions of an equation then what is the factor that gave us this solution

Answers

Answer:

3x - 1 = 0

Step-by-step explanation:

If x = 1/3

multiply both sides by 3

3 * x = 1/3 * 3

3x = 1

Subtract 1 from both sides ;

3x - 1 = 1 - 1

3x - 1 = 0 ( the factor which gives the solution)

3x - 1 = 0

3x = 1

Doavide both sides by 3

3x / 3 = 1/3

x = 1/ 3

There are 4 identical wooden blocks that are 20 inches long, 2 inches wide, and 1 inch thick. If you glue them together, what is the difference of the largest and smallest outer surface area you can get?

Answers

Answer:

Step-by-step explanation:

5 inches wide, and 2 inches thick. if you glue them together(stacked) what is ... If you glue the largest area faces together you will get the smallest overall ... The total surface area of one of the blocks is 2 times 250 square inches plus 2 times ... 720 times 3 is 2160 minus 4 times 250 is 2160 minus 1000 is 1160.

9. Teresa was taking her two children to the zoo. She purchased 1 adult ticket for herself and 2 children's
tickets for a total of $18.20. A family of 5 was also visiting the zoo. -The family purchased 2 adult tickets and
3 children's tickets for a total of $30.90. How much money did an adult ticket cost?

Answers

Answer:

plz mark as brainliest

Step-by-step explanation:

$7.9

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