| 协方差不等式的证明和推论 |
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| 引用本文： | 常广平,李林杉,陈冬.协方差不等式的证明和推论[J].大学数学,2009,25(5). |
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| 作者姓名： | 常广平 李林杉 陈冬 |
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| 作者单位： | 北京联合大学,基础部,北京,100101 |
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| 摘 要： | 利用构造二次函数的方法,证明了改进的协方差不等式,并在证明过程中得到3个推论,进一步探讨了随机变量具有线性关系时的若干结论.
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| 关 键 词： | 协方差不等式 随机变量 线性关系 |
The Proof of a Inequality and Its Deductions |
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| CHANG Guang-ping,LI Lin-shan,CHEN Dong.The Proof of a Inequality and Its Deductions[J].College Mathematics,2009,25(5). |
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| Authors: | CHANG Guang-ping LI Lin-shan CHEN Dong |
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| Abstract: | Using quadratic function proving a enhanced inequality,and obtaining three deductions about random variable of linear correlation. |
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| Keywords: | inequality random variable linear correlation |
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