Regression equation of Y on X 2x+3y-12=0. The value of byx is

The regression equation of x on y is 9x-2y-38=0 . If mean of x series is 6, then mean of y series is

The regression equation of y on x is 2x-5y +60 =0. Mean of x = 18 :. bary=square sigma_x:sigma_y=3:2 :. b_(yx)= (square)/(square) :. r = square

Regression equation of y on x and y be x + 2y - 5 = 0 and 2x + 3y - 8 = 0 respectively and the variance of x is 12. find the variance of y.