You have counted (6,6) twice. Therefore, is not correct.
Two dice are tossed. One is green and the other is red. When they land, the number shown uppermost on each is noted. What is the probability that there is a six on the green die or a six on the red die or a six on both?
i got 1/6 + 1/6 + 1/36 = 13/36
i keep getting that answer and its wrong, could someone please explain thanks