4) Consider the bivariate distribution p(x,y) of two discrete random variable X and Y Y=5 .1 .2 .2 0 Y=2 0 .1 0 0 Y=1.2 .1 .1 .1 .1 X= 1 2 3 4 Calculate p(x) Calculate p(y) Calculate p(y| x=2) Calculate Cov(X,Y)