In Bivariate Regression, Which Statement Is True Concerning the Coefficient

Multiple Choice

In bivariate regression, which statement is true concerning the coefficient of determination, r²?

A) r² varies between 0 and 1.
B) r² is the square of the simple correlation coefficient obtained by correlating the two variables.
C) r² signifies the proportion of the total variation in Y accounted for by the variation in X.
D) All are correct.