Multiple Choice
Use the following information to answer Questions .
The scatterplot below shows the relationship between a car's speed and the distance it traveled to come
to a complete stop when hitting the brakes. The correlation coefficient between the values is 0.81.
-Can we use the regression equation to predict the stopping distance of a car that is traveling at 40 mph?
A) No, we cannot make a prediction because a car that is traveling at 40 mph is outside the range of our data.We would be extrapolating.
B) No, we cannot make a prediction because the correlation coefficient does not equal 1.
C) Yes, we can always make predictions once we have a regression equation.
D) Yes, we can make a prediction because the scatterplot shows a strong positive linear relationship.
Correct Answer:

Verified
Correct Answer:
Verified
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