The measurement of central tendency and dispersion is the most basic statistic analysis of spatial pattern.
集中趋势的度量和分散趋势的度量是对空间模式最基本的统计分析。
The proper formulas for average and range charts will always use an average or median dispersion statistic in the computations.
适当的公式和图表总是会平均平均或平均分散使用的统计计算。
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