Class XII A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is: 1 13 2 13 1 26 1 52 Three unbiased coins are tossed. What is the probability of getting at most two heads? 3 4 1 4 3 8 7 8 In a meeting, 70% of the members favour and 30% oppose a certain proposal.A member is selected at random and we take X = 0 if he opposed, and X = 1 if he is in favour. Find E(X) and Var (X). E(X) = 0.9 and Var (X) = 0.29 E(X) = 0.8 and Var (X) = 0.14 E(X) = 0.7 and Var (X) = 0.21 E(X) = 0.6 and Var (X) = 0.22 Two dice are tossed. The probability that the total score is a prime number is: 1 6 5 12 1 2 7 9 What is the probability of getting a sum 9 from two throws of a dice? 1 6 1 8 1 9 1 12 Do you really want to submit this quiz? Cancel Submit Quiz