5.2 For the joint pmf in the table below: (a) Find the conditional expectation function E(Y|X). (b) Find the best linear predictor E*(Y|X). (c) Prepare a table that gives E(Y Ix) and E*(Y|x) for x = l, 2, 3. x=1 x=2 x=3 0 0.15 0.10 0.15 l 0.15 0.30 0.15 ___~__." y 3