In a regression analysis, if SST = 4500 and SSR = 2925, then the correlation coefficient could be
A) .35 or -.35.
B) .806 or -.806.
C) 1.
D) .65 or -.65.

Question

Quizplus · Accepted Answer

The coefficient of determination, R-squared, is SSR/SST. Therefore, R-squared = 2925/4500 = 0.65. Taking the square root of R-squared gives the correlation coefficient: √0.65 = 0.806 or -0.806. Therefore, the answer is choice B.

In a Regression Analysis, If SST = 4500 and SSR