Let P(A) = 0.9 and P(B) = 0.2. Can P(AB) = 0? In general, if P(A) +
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Let P(A) = 0.9 and P(B) = 0.2. Can P(AB) = 0? In general, if P(A) + P(B) > 1, can P(AB) = 0? Eventually, show that P(AB) ≥ P(A) + P(B) − 1, and find to which value P(AB) can be equal if P(A) = 0.9 and P(B) = 0.2.
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