Question: Question 4 a) Let P(X) = 0.55 and P(Y) = 0.35. Assume the probability that they both occur is 0.20. What is the probability of

Question 4 a) Let P(X) = 0.55 and P(Y) = 0.35. Assume the probability that they both occur is 0.20. What is the probability of either X or Y occurring? b) Suppose Let P(A) = 0.40 and P(BA) = 0.30. What is the joint probability of A and B

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