| 离散型随机变量独立性的判定 |
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| 引用本文： | 任彪.离散型随机变量独立性的判定[J].河北省科学院学报,1999,16(3):23-26. |
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| 作者姓名： | 任彪 |
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| 作者单位： | 河北经贸大学,石家庄050091 |
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| 摘 要： | 】 借助于条件数学期望给出了离散型随机变量相互独立的一个充分必要条件和一个充分条件，其中的充分必要条件推广了已有的结论。
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| 关 键 词： | 离散型随机变量 独立性判定 |
| 文章编号： | 1001-9383(1999)03-0023-04 |
Judgement of independence of discrete random variables |
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| REN Biao.Judgement of independence of discrete random variables[J].Journal of The Hebei Academy of Sciences,1999,16(3):23-26. |
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| Authors: | REN Biao |
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| Institution: | REN Biao;
(Hebei University of Economy and Trade,Shijiazhuang |
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| Abstract: | With conditional expectation, a mutually independent necessary and sufficient condition of two discrete random variables is presented in this paper, which extends the relative conclusion of previous theory.In addition, a mutually independent sufficient condition of two discrete random variables is presented. |
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| Keywords: | Discrete random variables Judgement of independence |
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