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?  Pick one.
A) 5/9
B) 5/2
C) 5/1
D) 5/6
E) 5/3
Explanation:   P(at least one graduate) = 1 - P(no graduates) =   1 - â¶Câ‚ƒ/Â¹â°Câ‚ƒ = 1 - (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?