Mathematics, 06.06.2020 22:02, vkyles84

15 people get into an elevator at the basement of a building. The building has 10 floors above the basement. Each person chooses a floor (independently of the others) at random to get out. At how many floors do you expect the elevator to make a stop to let out one or more of these 15 people?

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15 people get into an elevator at the basement of a building. The building has 10 floors above the b...

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