Mathematics, 26.07.2019 00:20 youugly0123
Suppose that a box contains r red balls and w white balls. suppose also that balls are drawn from the box one at a time, at random, without replacement. (a)what is the probability that all r red balls will be obtained before any white balls are obtained? (b) what is the probability that all r red balls will be obtained before two white balls are obtained?
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James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out
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