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What is the probability that by time t

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Suppose there are n types of coupons. Each time you collect a coupon, it is equally likely to be one of the n types, independent of previous coupons. Let T be the first time that you have collected all the types of coupons. Suppose that the first coupon is of type 1. What is the probability that by time T we have only collected exactly one coupon of type 1?

Reference no: EM132857044

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