An urn contains one black and n 1 white balls. Balls are drawn at random, one at a time
Chapter 12, Problem 70(choose chapter or problem)
An urn contains one black and n 1 white balls. Balls are drawn at random, one at a time, until the black ball is selected. Each ball is replaced before the next ball is drawn. Find the probability that at least n draws are needed. What happens as n?
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