| 对称性在正态分布概率计算中的应用 |
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| 引用本文： | 高发宝.对称性在正态分布概率计算中的应用[J].唐山学院学报,2014(3):15-17. |
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| 作者姓名： | 高发宝 |
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| 作者单位： | 扬州大学数学科学学院,江苏扬州225002 |
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| 基金项目： | 国家自然科学基金项目（11802187） |
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| 摘 要： | 实际问题中的许多自然现象或社会现象均服从或近似服从正态分布,正态分布在概率统计中也起着非常重要的作用,然而正态分布的概率计算却较为复杂。文章运用正态分布的概率密度函数的对称性,通过计算几类服从正态分布的随机变量的概率,避免了繁重的科学计算,同时也凸显出了对称性在正态分布概率计算方面的重要应用价值。
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| 关 键 词： | 正态分布 概率密度函数 对称性 |
An Application of Symmetry to the Calculation of Normal Distribution |
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| GAO Fa-bao.An Application of Symmetry to the Calculation of Normal Distribution[J].Journal of Tangshan College,2014(3):15-17. |
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| Authors: | GAO Fa-bao |
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| Institution: | GAO Fa-bao (College of Mathematical Science, Yangzhou University, Yangzhou 225002, China) |
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| Abstract: | In reality,many natural phenomena or social phenomena follow or approximate to nor-mal distribution,which plays a very important role in probability statistics,but the calculation of the probability of a normal distribution is rather complicated.The author of this paper,employs the symmetry of the probability density function of normal distribution,avoids the heavy scientif-ic computing by calculating several types of probability of normal distribution of random variables,and highlights the importance of symmetry in the normal distribution probability calculation. |
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| Keywords: | normal distribution probability density function symmetry |
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