| 关于N(a,B)一个特性的初等演证 |
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| 引用本文： | 徐沥泉. 关于N(a,B)一个特性的初等演证[J]. 大学数学, 2010, 26(2) |
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| 作者姓名： | 徐沥泉 |
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| 作者单位： | 无锡市教育研究中心,江苏,无锡,214001 |
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| 摘 要： | 用较初等的方法演证了多元正态分布的一个特性,即N(a,B)可由其前二阶矩完全确定.
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| 关 键 词： | N(α B) 二阶矩 数学期望 协方差 |
An Elementary Demonstrating on the Characteristic Property of Multivariate Normal Distribution |
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| XU Li-quan. An Elementary Demonstrating on the Characteristic Property of Multivariate Normal Distribution[J]. College Mathematics, 2010, 26(2) |
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| Authors: | XU Li-quan |
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| Abstract: | We have proved a theorem with complete detail,i.e.,if the random vector ξ～N(a,B),then its distribution will be determined by the second moment in front of ξ. |
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| Keywords: | B) |
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