If the least-squares regression line for predicting y from x is y = 40 + 10x, what is the predicted value of y when x = 5?
A) 250
B) 90
C) 50
D) 40
E) 10

Name: If the least-squares regression line for predicting y from x is y = 40 + 10x, what is the predicted value of y when x = 5? A) 250 B) 90 C) 50 D) 40 E) 10
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Question

Quizplus · Accepted Answer

Substituting x = 5 in the equation y = 40 + 10x, we get y = 40 + 10(5) = 90. Therefore, the predicted value of y when x = 5 is 90.

If the Least-Squares Regression Line for Predicting Y from X