Explain why the following statement is incorrect: A red die and a green die are tossed? probability that a 6 will appear uppermost on the red die is 1 6 , and the probability that a 1 will appear uppermost on the green die is 1 /6 . Hence, the probability that the red die will show a 1/ 6 or the green die will show a 1 is 1/ 6 + 1/ 6.