Weight loss is regressed on initial weight. On the basis of the resulting regression equation, a person's predicted weight loss is 15 pounds. They actually lost 17 pounds. What is the regression residual?
A) −2
B) 2
C) 17
D) 32

Question

Quizplus · Accepted Answer

The regression residual is the difference between the actual value and the predicted value. In this case, the predicted value is 15 pounds and the actual value is 17 pounds, so the residual is 17 - 15 = 2. Therefore, the answer is B, 2.

Weight Loss Is Regressed on Initial Weight