negative binomial distribution
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送交者: lars 于 2009-04-20, 17:48:58:
回答: 懂统计的分析一下生男即止的政策能不能缓解男女比例严重失调？ 由 foresight 于 2009-04-20, 13:59:31:
The expected number of girl for will be q/p . It is same as the girl to boy ration without selection.
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