In a multiple regression analysis if the multiple coefficien

In a multiple regression analysis, if the multiple coefficient of correlation is -0.933 then the proportion fo the variability in the dependent variable, y, that has been explained b the estimated regression equation is:

A) 0.9659

B) 0.933

C) -0.8705

D) 0.8705

*** Please dont just give me the answer, I would like to know how you came up with that answer as well.THANK YOU ***

Solution

R² = (-0.933)² = 0.8705