| 用数理统计方法改进中位数公式 |
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| 引用本文： | 蔡木生.用数理统计方法改进中位数公式[J].科技信息,2008(22):169-170. |
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| 作者姓名： | 蔡木生 |
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| 作者单位： | 广州大学华软软件学院 广东广州510990 |
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| 摘 要： | 本文针对组距式资料的中位数计算进行了讨论,指出了传统公式的不足,改进了中位数位置的确定标准,提出了用均匀分布次序统计量的数学期望来估算中位数的方法,并在此基础上推导出新的中位数计算公式。
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| 关 键 词： | 中位数公式 组距式资料 中位数位置 次序统计量期望值 |
An Improvement to Median Formula Based on Statistics |
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| Cai Musheng.An Improvement to Median Formula Based on Statistics[J].Science,2008(22):169-170. |
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| Authors: | Cai Musheng |
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| Institution: | Cai Musheng (South-China Institute of Software Engineering, Guangzhou University, Guangzhou, 550990) |
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| Abstract: | In this paper, we discuss median calculation of interval type grouping and point out some shortcomings in the traditional formula, then revise the criteria to locate median, present a method to estimate median based on mathematical expectation of order statistics in uniform distribution, and finally propose a new median formula. |
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| Keywords: | median formula interval type grouping median location expectation of order statistics |
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