正态分布的超额峰度为3。()

作者: rantiku 人气: - 评论: 0

问题正态分布的超额峰度为3。()

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解析定义β2-3叫作超额峰度(ExcessKurtosis)，由于正态分布的峰度=3，所以一个正态随机变量的超额峰度为0。

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文件: /twcms/kongphp/cache/cache_redis.class.php
位置: 第 85 行

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