A pair of fair, standard dice are rolled. What is the probability the sum of the dice is 3?
a dice has 6 sides.
6 divided by 3=2
The LCD of 6 and 2 is 6
so the answer is 2/6
A pair of fair, standard dice are rolled. What is the probability the sum of the dice is 3?
Those two dice could land in one of thirty-six combinations.
Here they are. The combinations that total three are purple.
1,1 1,2 1,3 1,4 1,5 1,6
2,1 2,2 2,3 2,4 2,5 2,6
3,1 3,2 3,3 3,4 3,5 3,6
4,1 4,2 4,3 4,4 4,5 4,6
5,1 5,2 5,3 5,4 5,5 5,6
6,1 6,2 6,3 6,4 6,5 6,6
As you can see, there are two possibilities out of thirty-six combinations.
So the probability is 2 out of 26 aka 2/36 aka 1/18
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