There are 4 ways to roll a nine: 3 and 6, 6 and 3, 4 and 5, 5 and 4 with two six-sided dice. There are 6 times 6 = 36 ways to roll two dice. The probability of rolling a 9 is thus 4/36 = 1/9.
What is the probability of rolling a nine with two, fair, six-sided dice?
(a) 1/6
(b) 1/9
(c) 2/13
(d) 1/12
(e) 5/36