probability of A | 0.4 probability of B | 0.47 probability of C | 0.57 probability of A intersection B | 0.17 probability of A intersection C | 0.15 probability of B intersection C | 0.22 probability of A intersection B intersection C | 0.05

probability of A union B union C | 0.95

P (A union B union C) = P(A) + P(B) + P(C) - P(A intersection B) - P(A intersection C) - P(B intersection C) + P(A intersection B intersection C)