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


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Answer:

Step-by-step explanation:

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Answer:

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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

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20v³ + 20 - 30x²

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Step-by-step explanation:

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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:

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.

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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

A water rocket is launched froni a platform. The height,
h in metres, of the water rocket at time & seconds after
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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

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Answers

Answer:

12 ima shoot u

Step-by-step explanation:

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!

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)] =
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Answers

Answer:

a=17

b=37

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d=8

e=

f=-2

y=8x+b
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Answers

Answer:

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Is that what you wanted? I hope it is

Please help!

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Answers

Answer:

5

Step-by-step explanation:

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.

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Answers

Answer:

m=8

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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]

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

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

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I hope this helps!

A toy store had 789 games.
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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

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Answers

Answer:

3x - 1 = 0

Step-by-step explanation:

If x = 1/3

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3 * x = 1/3 * 3

3x = 1

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3x - 1 = 1 - 1

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3x - 1 = 0

3x = 1

Doavide both sides by 3

3x / 3 = 1/3

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

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)

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Answers

Answer:

(1,-3), (2,-2)​

Step-by-step explanation:

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

The slope is:

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y = x - 4

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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:

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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

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

Answers

Answer:

i belive its the transitive property

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Answers

Answer:

C

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Answers

Answer:

74

Step-by-step explanation:

13 5-peso coins

9 1 peso coins

13 X 5 = 65

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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

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°

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:

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]

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 !!

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