2. Suppose the discrete random X has the following probability mass function 2 2 fx (x; 0) = 03 (1 -0)1-12 ,re {-1, 0, 1}. a) Is 71 = X sufficient for 0? Give reasons. b) Is T2 = X2 sufficient for 0? Give reasons. c) Is 71 = X complete for 0? Give reasons. d) Is T2 = X2 complete for 0? Give reasons