Question

in a single throw of two dice what is the probability of getting a sum of 9

Answer 1

1. In order to get a sum of 9 with two dice, you would have to roll the pairs 4& 5, 5 & 4, 3 & 6, or 6 & 3. Since you have two dice there are 36 different combinations (6 faces*6 faces) you could roll, but only 4 of them would give you a sum of 9. That makes the probability 4/36 or 1/9.