| 求解随机变量数字特征的两种有效方法 |
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| 引用本文： | 闫立梅. 求解随机变量数字特征的两种有效方法[J]. 长春师范学院学报, 2007, 26(2): 12-13 |
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| 作者姓名： | 闫立梅 |
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| 作者单位： | 德州学院数学系,山东德州253023 |
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| 摘 要： | 求解随机变量的数字特征是数理统计中的一个重要课题，本文利用泰勒级数和条件数学期望给出了正态分布数字特征的求解方法，并将所得结果做了适当的推广。
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| 关 键 词： | 泰勒级数 条件数学期望 正态分布 数字特征 |
| 文章编号： | 1008-178X（2007）02-0012-02 |
| 修稿时间： | 2006-10-23 |
Two Methods for Solving Numerical Characteristics of Random Variable |
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| YAN Li-mei. Two Methods for Solving Numerical Characteristics of Random Variable[J]. Journal of Changchun Teachers College, 2007, 26(2): 12-13 |
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| Authors: | YAN Li-mei |
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| Affiliation: | Department of Mathematics, Dezhou University, Dezhou 253000, China |
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| Abstract: | Numerical characteristic of random variable is an important section in mathematical statistics. This paper proposes two methods for solving numerical characteristics of normal distribution by using Taylor series and conditioned mathematical expectation and generalizes the conclusion. |
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| Keywords: | Taylor series conditioned mathematical expectation normal distribution numerical characteristics |
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