If the coefficient of determination between two variables is .81,what is the Pearson's correlation coefficient?
A)0.19
B)0.34
C)0.66
D)0.90

Question

Quizplus · Accepted Answer

The coefficient of determination (R^2) is the square of the Pearson's correlation coefficient (r). Given R^2 = .81, taking the square root gives r = ±0.9. However, since Pearson's correlation coefficient values are provided as positive, the correct answer is 0.90.

If the Coefficient of Determination Between Two Variables Is