Out of 9 people working on a project, 4 are graduates. If 3 people are selected at random, what is the probability that there is at least one graduate among them?  Pick.
A) 15/23 B) 21/28 C) 31/38 D) 37/42 E) 43/56
P(no graduates) = 5C3 / 9C3 = 5/42   P(at least one graduate) = 1- 5/42 = 37/42   The answer is 37/42.
<result>D</result>
Out of 9 people working on a project, 4 are graduates. If 3 people are selected at random, what is the probability that there is at least one graduate among them?