| 关于负超几何分布期望与方差算法的注记 |
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| 引用本文： | 王炳章.关于负超几何分布期望与方差算法的注记[J].大学数学,2021,37(2):53-57. |
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| 作者姓名： | 王炳章 |
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| 作者单位： | 烟台大学 数学与信息科学学院,山东 烟台 264005 |
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| 基金项目： | 烟台大学2018年在线课程建设项目 |
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| 摘 要： | 研究了非还原取样模型中负超几何随机变量的联合分布,得到了若干有用的推论.据此给出了负超几何分布的期望和方差的一种分解算法.
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| 关 键 词： | 无放回抽样 负超几何分布 联合分布 |
A Note on Algorithm for the Expectation and Variance of Negative Hypergeometric Distribution |
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| WANG Bing-zhang.A Note on Algorithm for the Expectation and Variance of Negative Hypergeometric Distribution[J].College Mathematics,2021,37(2):53-57. |
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| Authors: | WANG Bing-zhang |
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| Institution: | (School of Mathematics and Information Sciences,Yantai University,Yantai Shandong 264005,China) |
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| Abstract: | The joint distribution of negative hypergeometric random variable in sampling model without replacement is studied,and a number of useful inferences are obtained.Moreover,the expectation and variance of negative hypergeometric distribution are calculated by a decomposition algorithm. |
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| Keywords: | sampling without replacement negative hypergeometric distribution joint distribution |
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