A football team plays two matches; they get X points from the first and Y points from the second. The joint probability mass function of the two random variables X and Y is given by the following table: X Y 0 1 3 0 3/16 2/16 c 1 2/16 2/16 1/16 3 1/16 2/16 3/16 Calculate (a) the value of c; [3] (b) the probability mass function fX (x) of X; [3] (c) the expectation of X; [3] (d) the variance of X; [5] (e) the covariance of X, Y