Guide to statistical process control charts for variables - charts for mean, median, range and standard deviation.

变量静态加工控制图表指南。均值，中值，范围和标准偏差图表。

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Both range and its standard deviation are calculated according to surface energy approximation and mean energy approximation.

用表面能量近似和平均能量近似从背散射谱上计算了射程深度和射程分布的标准偏差。

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This tool contains the following statistics types: sum, mean, minimum, maximum, standard deviation, range, first, and last. Available with any ArcGIS license.

这些工具完成对属性数据的频次、平均值、最小值、最大值和标准偏差的分析，并将结果存于一个新的表格中。

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The gray area around the average line shows the two standard deviation range of the data.

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The Twins' 0.525 winning percentage fell within that standard range, translating to a score of less than one standard deviation above the 0.500 mean.

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