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30-05-2023
Mathematics

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(4) Let X represent the total number of four events A, B, C, D that occur. Assume P(A) = P(B) = 1/2, P(C) = P(D) = 1/4. (a) Calculate EX. (b) Assume events A, B, C, and D are pairwise independent. Calculate VarX.

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