8. Five in a company of 20 are graduates. If 3 men are picked out of 10 at random,
a. What is the probability that they are all graduates?
b. What is the probability of at least one graduate
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Answer:
The probability that at least one is a graduate =1− probability that no one of them is a graduate
=1−
15
C
3
/
20
C
3
Explanation:
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