The homoskedastic normal distribution with a single explanatory variable y ↑fyx) E(ylx)=Bo+Bx {Normal distributions 1 X2 Econometrics 15-Zhuxi@SJTU 6Econometrics 15 - Zhuxi@SJTU 6 . . x1 x2 The homoskedastic normal distribution with a single explanatory variable E(y|x) = b0 + b1 x y f(y|x) Normal distributions