When coming up with the probability of an outcome, divide the outcome you're looking for by the total number of possible outcomes. In a coin toss, the probability of either side is 1 ⁄ 2, as there are two total outcomes. With dice, which have six sides, the probability of one of the numbers landing on top is 1 divided by 6, or 1 ⁄ 6.

Stephen has three sweaters: one is blue, one is red and one is green. He pulls a sweater out of his dresser at random. What is the probability that it is his green sweater?

A
1/3

B
1/4

C
3/1

D
1