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Extenstion of Coupon collector problem

X took N dices, numbered from 1 to N, shuffled them, took K of them randomly and then recorded their numbers and returned them to the pile. Then he repeated these steps: shuffle them again, again took the K dices, and so on.

how many times he need to do so,that each dice has been taken at least once?

asked 28 Dec '14, 14:53

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question asked: 28 Dec '14, 14:53

question was seen: 1,263 times

last updated: 23 Feb, 23:18