Out of 12 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 one:	A) 5/55	B) 21/55	C) 51/55	D) 41/55	E) 31/55
P(at least one graduate) = 1 - P(no graduates)   = 1 - 8C₃/12C₃ = 1 - (8 * 7 * 6)/(10 * 11 *12)   = 41/55   Answer: 41/55
<result>D</result>
Out of 12 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?