Question: If the probability that it will be rainy is 0.6, and the probability that it will be windy is 0.5, and the probability that it

If the probability that it will be rainy is 0.6, and the probability that it will be windy is 0.5, and the probability that it will be either windy or rainy is 0.9, what is the probability that it will be both rainy and windy?

Hint: Use the fact that P(A or B)= P(A)+ P(B)- P(B) -P(A and B).

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