Correlation

Question 1

What are the slope and y-intercept of the regression line?

Revolt · Accepted Answer

slope: 2.515, y-intercept: 0.010

Question 2

Complete the statement based on the information.

Revolt · Accepted Answer

✔ 1; For every -square-foot increase, the predicted home price is predicted to increase by $.: 1; $.: 144

Question 3

Use the scatterplot to complete the statements.

Revolt · Accepted Answer

Prediction 1: If the duration of an event is 4.5 minutes, guests can expect about minutes until the next event.: 82; Prediction 2: If a future event is expected to last 6 minutes, guests can expect to wait 95 minutes until the next event.: more than; Which prediction would you consider to have a higher confidence level?: Prediction 1

Question 4

1 100 ✔ 144802,456

Revolt · Accepted Answer

✔ 144

Question 5

What is the predicted store profit if 0 computers are sold for the day?

Revolt · Accepted Answer

‒$150

Question 6

Which statements are true regarding this model? Check all that apply.

Revolt · Accepted Answer

For every one year in age, the price is predicted to decrease by $930.; If the car is new, the car is predicted to cost $12,338.

Question 7

Question 19

Revolt · Accepted Answer

6.298

Question 8

Question 21

Revolt · Accepted Answer

8,618

Question 9

50 minutes ✔ 70 minutes75 minutes 100 minutes

Revolt · Accepted Answer

✔ 70 minutes

Question 10

The regression equation is ŷ = 67.79 + 6.72x. How many participants are needed in order for the school to raise $800?

Revolt · Accepted Answer

109

Correlation Answers

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