Practice Test

Question 14 • Statistical Reasoning

Using technology, the slope of the least-squares regression line is

Answer

negative 0 point 1 0, which means for each additional absence, the GPA is predicted to decrease by 0 point 1 0 points.

negative 0 point 1 0, which means for each additional absence, the GPA will decrease by 0 point 1 0 points.

0 point 1 0 , which means for each additional absence, the GPA will increase by 0 point 1 0 points.

0 point 1 0 , which means for each additional absence, the GPA is predicted to increase by 0 point 1 0 points.

Explanation

The slope is −0.10, so the predicted GPA changes by −0.10 points for each additional absence. In context, this means GPA is predicted to decrease by 0.10 points per additional absence. Choice C is correct; the word “predicted” matters because a regression line does not guarantee that every individual’s GPA will change by that exact amount.

AI-written and checked against the verified answer.

More from this Course

Practice Test

Test

Quiz