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卡方分布的解释
更新时间: 2020-06-29 00:00:00  

若n个相互独立的随机变量,均服从标准正态分布,则这n个服从标准正态分布的随机变量的平方和构成一新的随机变量,其分布规律称为卡方分布。

不同的自由度决定不同的卡方分布,自由度越小,分布越偏斜。

关键词: 分布 解释

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