If 5 people get on an elevator which will stop on 9 floors, a) what is the probability that no two(or more) get off the same floor? b) What is the probability that at least two get off on the same floor?
If 5 people get on an elevator which will stop on 9 floors, a) what is the probability that no two(or more) get off the same floor? b) What is the probability that at least two get off on the same floor?
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