Exampl ole district sales Multiple regression model Y=Bo+BX1+P2X2+8 where y= district sales XI=target population X=per capita discretionary income Multiple Regression equation Using the assumption E(a)=o, we obtain E()=B0+B1+B2X2 Slide 13Slide 13 Example: District Sales • Multiple regression model where Y = district sales X1 = target population X2 = per capita discretionary income • Multiple Regression Equation Using the assumption E( ) = 0, we obtain =  +  +  + Y 0 1 X1 2 X2 0 1 1 2 2 E(Y) =  +  X +  X