In Bivariate Regression,which Statement Is True Concerning the Coefficient of Determination,r²

Multiple Choice

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

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