A correlation coefficient is equal to .30.Using the coefficient of determination,the variance accounted for by chance,error,and other unexplained factors is
A) approximately 91%.
B) approximately 30%.
C) approximately 3%.
D) None of these

Question

Quizplus · Accepted Answer

The coefficient of determination is calculated as the square of the correlation coefficient. In this case, 0.30 squared equals 0.09, which means 9% of the variance is explained by the relationship. Therefore, the variance accounted for by chance, error, and other unexplained factors is 100% - 9% = 91%.

A Correlation Coefficient Is Equal to