Question 838801
Given P(A or B) = 1.0, P(A and B) = 0.9, and P(B) = 0.8, find the following. (If not possible, enter IMPOSSIBLE.)
(a) P(B) = 0.8

(b) P(A) = 1+0.9-0.8 = 1.1 (Impossible)

(c) P(A|B) = 1/0.8 = 10/8 = 1.25 (Impossible)
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Cheers,
Stan H.