A computer consulting firm presently has bids out on three projects. Let A, = {awarded project i}, for i = 1, 2, 3, and suppose that P(A,) = .22, P(A,) = .25, P(A)) = .28, P(A, n A,) = 11, P(A, nAy) = .05, P(A, nA;) = .07, P(A1 0 A2 n A3) = 0.01 a. (One point) Are A; and A; pairwise independent? b. (One point) Are A1, A2 and A3 mutually independent? 7. (1.5 points) Show that ( R ) = (n -1 )