问题如下：
4. The most appropriate interpretation of the multiple R-squared for Hansen’s model is that:
选项：
A.unexplained variation in the dependent variable is 36 percent of total variation.
B.correlation between predicted and actual values of the dependent variable is 0.36.
C.correlation between predicted and actual values of the dependent variable is 0.60.
解释：
C is correct.
The multiple R-squared for the regression is 0.36; thus, the model explains 36 percent of the variation in the dependent variable. The correlation between the predicted and actual values of the dependent variable is the square root of the R-squared or .
了解R^2中X和Y的关系
但是不太明白Mutiple R中x和y的关系 所以不太明白为什么C选项正确
请老师讲解一下 谢谢
