某人从周一到周五收信数分别为10,6,8,5,6,则该组数据方差S2=___________。

作者: tihaiku 人气: - 评论: 0
问题 某人从周一到周五收信数分别为10,6,8,5,6,则该组数据方差S2=___________。
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答案
解析 这组数据平均数为(10+6+8+5+6)÷5=7,则该组数据方差

相关内容:周一到,数据,方差

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