A red die is tossed and then a green die is tossed. What is the probability that the red die shows a six or the green die shows a six? Hint: The two events are not mutually exclusive. So to the find the probability of the union, use: P(A or B) = P(A) + P(B) - P(A and B) 11 [?] 1/6 or 2/12 Didn't work. :(