Out of 10 persons working on a project, 4 are graduates. If 3 are selected, what is the probability that there is at least one graduate among them? Select the correct option:  A) 5/9  B) 5/4  C) 5/1  D) 5/6  E) 5/2
P(at least one graduate) = 1 - P(no graduates)   (6 * 5 * 4)/(10 * 9 * 8) = 5/6   Answer: 5/6
<result>D</result>
Out of 10 persons working on a project, 4 are graduates. If 3 are selected, what is the probability that there is at least one graduate among them?