Suppose that A and B are independent events such that P (/A) = 0.50 and P (B)= 0.20 Find P (A n B) and P (A U B) P (A n B) = P (A U B) = Solution P(A) = 1 - P (/A) = 1 - 0.5 =0.5 P (A n B) = P(A)*P(B) ( since A and B are independent events ) = (1-0.50)*(0.2) = 0.1 P (A U B) = P(A) + P(B) - P (A n B) = 0.5 + 0.2 - 0.1 = 0.6.