Assume that P(A) = 3/5, P(B) = 3/10, P(C) = 7/10, P(D) = 4/5, and P(A/B) = 7/10. Assuming that C and D are independent, determine the following probability: P(B ?A)

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P(B ? A) = P(B) + P(A) - P(B • A) = 3/10 + 3/5 - 21/100 = 30/100 + 60/100 - 21/100 = 69/100

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