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(a) If P(A) = 0.8,P(B) = 0.5,P(B/A) = 0.4 then find P(A U B)

(b) If a fair coin is tossed 10 times, then find the probability of getting exactly 6 heads.

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(a) 

P(B/A) = 0.4 = \(P(\frac{A∩B}{P(A)})=0.4\)

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