| 关于随机变量数学期望与方差的讨论 |
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| 引用本文： | 胡学平. 关于随机变量数学期望与方差的讨论[J]. 安庆师范学院学报(自然科学版), 2009, 15(4): 89-91,95 |
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| 作者姓名： | 胡学平 |
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| 作者单位： | 安庆师范学院,数学与计算科学学院,安徽,安庆,246133 |
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| 基金项目： | 安庆师范学院校级教研项目 |
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| 摘 要： | 通过举例探讨了求随机变量的数学期望和方差的若干方法,有利用于学生进一步了解随机变量数学期望与方差的性质和应用。
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| 关 键 词： | 随机变量 数学期望 方差 |
Some Discussions on Expectation and Variance of Random Variable |
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| HU Xue-ping. Some Discussions on Expectation and Variance of Random Variable[J]. Journal of Anqing Teachers College(Natural Science Edition), 2009, 15(4): 89-91,95 |
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| Authors: | HU Xue-ping |
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| Affiliation: | HU Xue-ping (School of Mathematics and Computational Science, Anqing Teacher College, Anqing 246133,China) |
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| Abstract: | In this article,we mainly give some methods how to solve expectation and variance of random variable.We may further understand its properties and some applications on expectation and variance of random variable by some examples. |
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| Keywords: | random variable expectation variance |
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