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.
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。
This paper discusses how to make good group range variable number series with authentic statistics from a global viewpoint.
本文从全面看问题的观点和维护统计资料的真实性出发论述了编制组距变量数列时应该梳理清楚的几个问题。
