What is the expected number of floors the elevator stops

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Reference no: EM13231781

A building has n floors numbered 1, 2, . . . , n, plus a ground floor G. At the ground floor,m people get on the elevator together, and each gets off at a uniformly random one ofthe n floors (independently of everybody else). What is the expected number of floors
the elevator stops at (not counting the ground floor)?

*use linearity of expectation and notation of E[X] where X is the event

Reference no: EM13231781

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