Let A, B, and C be 3 events on a probability space. In terms of p[A], P[B], P[C], P[AB], P[AC], P[BC], and P[ABC] express for k = 0, 1, 2, 3 (i) P[exactly k of the events, A, B, C, occur], (ii) peat least k of the events, A, B, C, occur], (iii) P[at most k of the events, A, B, C, occur].