| 数学期望的计算方法 |
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| 引用本文： | 高显彩,张丽慧. 数学期望的计算方法[J]. 枣庄师专学报, 2012, 0(2): 33-36 |
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| 作者姓名： | 高显彩 张丽慧 |
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| 作者单位： | [1]宿州学院数学与统计学院,安徽宿州234000 [2]宿州市第二中学,安徽宿州234000 |
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| 摘 要： | 数学期望是概率统计中随机变量最重要的数字特征之一,本文通过一些例子,给出了数学期望的几种求法.
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| 关 键 词： | 数学期望 随机变量 特征函数 |
Calculation about mathematic expectation |
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| GAO Xian-cai,ZHANG Li-hui. Calculation about mathematic expectation[J]. Journal of Zaozhuang Teachers' College, 2012, 0(2): 33-36 |
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| Authors: | GAO Xian-cai ZHANG Li-hui |
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| Affiliation: | ( 1 School of Mathematics ＆ statistics, Suzhou University, Suzhou234000, China 2 The second middle school of Suzhou, Suzhou 234000 , China) |
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| Abstract: | The mathematic expectation is one of the most important concepts of random variable in probability statistics. Through several examples, in the paper, the authors give several methods about the calculation of mathematic expectation. |
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| Keywords: | mathematic expectation random variable characteristic function |
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