弱人问个题 (转载) - Mathematics版

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Mathematics版 - 弱人问个题 (转载)

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(共1页)

i***q
发帖数: 1095

【以下文字转载自 Statistics 讨论区】
发信人: iamwq (will), 信区: Statistics
标题: 弱人问个题
发信站: BBS 未名空间站 (Tue Nov 17 13:38:18 2009, 美东)
Suppose that balls are tossed into b bins. Each toss is independent, and
each ball is equally likely to end up in any bin. What is the expected
number of ball tosses before at least one of the bins contains two balls?

z****e
发帖数: 2024

这个题我不是给你做了么？去统计版看吧。

(共1页)

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话题: bins话题: each话题: balls话题: ball话题: 个题

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