Suppose that for S = {1,2,3,4,5,6,7,8},
P(1) = P(2) = P(3) = P(6) = 0.10
P(4) = P(7) = P(8) = 0.08
P(5) = 0.36
Then with A = {1,3,5,6}, and, B= {2,3,4,5,8}
P(A
U B) i

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