| 关于Mill比的两个新结果 |
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| 引用本文： | 金小萍. 关于Mill比的两个新结果[J]. 数学的实践与认识, 2009, 39(14) |
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| 作者姓名： | 金小萍 |
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| 作者单位： | 浙江广播电视大学,长兴学院,浙江,长兴,313100 |
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| 摘 要： | 利用几何凸函数的性质,给出关于Mill比R x=ex22∫x+∞e-t22dt的两个新结果.当x>2.05时,它们都强于H.O.Pollak、A.V.Boyd得到的一些著名的结果.
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| 关 键 词： | 不等式 概率不等式 Mill比 几何凸函数. |
Two New Results of the Mills' Ratio |
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| JIN Xiao-ping. Two New Results of the Mills' Ratio[J]. Mathematics in Practice and Theory, 2009, 39(14) |
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| Authors: | JIN Xiao-ping |
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| Abstract: | By using some properties of geometrically convex function,this paper gives two new results of the Mills′ ratio Rx=ex22∫+∞xe-t22dt, when x>2.1,they are stronger than some well-known results given by H.O.Pollak,A.V.Boyd. |
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| Keywords: | inequality probability inequality Mill′s ratio geometrically convex function |
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