6. The bivariate probability mass function of X and Y, p(x,y), is given by p(1,1) = q. p(2,1) = =.p(3,1) = p(1,2) = .p(2,2) = 0, p(3,2) = 18 1 1 p(1,3) = 18 . P(2,3) = =, p(3,3) = Compute E[X | Y=i] for i=1,2,3