Question: Problem 4. Let A and B be events such that P(A U B) = 0.8, P(A) = 0.5, and P(B) = 0.4. Find the expected

Problem 4. Let A and B be events such that P(A U B) = 0.8, P(A) = 0.5, and P(B) = 0.4. Find the expected values of the following random variables: IA . IB, IA + IB, 21A - IB

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