In a regression analysis, the coefficient of determination is .4225.The coefficient of correlation in this situation is A) .65 if b₁ is positive. B) .1785. C) -.18 if b₁ is negative. D) .4225.

Question

Quizplus · Accepted Answer

The coefficient of determination (R²) is the square of the coefficient of correlation (r). Therefore, r = √0.4225 = 0.65. If b₁ is positive, r is positive, so the answer is 0.65.

In a Regression Analysis, the Coefficient of Determination Is