If the coefficient of determination is 0.975, then the slope of the regression line:
A) must be positive
B) must be negative
C) could be either positive or negative
D) must be 0
E) none of these

Question

Quizplus · Accepted Answer

The coefficient of determination (R^2) measures the proportion of the variance in the dependent variable that is predictable from the independent variable. It does not indicate the direction (positive or negative) of the relationship, only the strength. Therefore, the slope of the regression line could be either positive or negative.

If the Coefficient of Determination Is 0