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?
Choose the correct choice from the following choices.
A) 5/7
B) 9/6
C) 5/9
D) 5/6
E) 3/6
Explanation:   P(at least one graduate) = 1 - P(no graduates) =   1 - ⁶C₃/¹⁰C₃ = 1 - (6 * 5 * 4)/(10 * 9 * 8) = 5/6   Answer: Option 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?