l Coefficient of multiple Determination The proportion of variance in y that is explained by the multiple regression equation is given by ∑(y.-y R=1 21 SSE SSR ∑(y.-y SSTSST o 2002 The Wadsworth GroupCoefficient of Multiple Determination • The proportion of variance in y that is explained by the multiple regression equation is given by: R 2 = 1– S(y i –y ˆ i ) 2 S(y i –y ) 2 = 1 – SSE SST = SSR SST © 2002 The Wadsworth Group