平均数

in hive-180932 •  3 days ago 

平均数也称为均值（mean），一般包括算术平均数和几何平均数两种形式。利用平均数可以将处在不同地区、不同单位的某现象进行空间对比分析，也可以将不同时间内的某现象进行时间对比分析，反映现象一般水平的变化趋势和规律。

hive-180932
3 days ago by

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