中心矩 Central moment

（重定向自Moment about the mean）

在概率论或者统计学中，中心矩(Central Moment)是关于某一个随机变量平均值构成随机变量的概率分布的矩.

单词	Moment about the mean
释义	Moment about the mean 中文百科中心矩 Central moment （重定向自Moment about the mean）在概率论或者统计学中，中心矩(Central Moment)是关于某一个随机变量平均值构成随机变量的概率分布的矩. 英语百科 Central moment 中心矩（重定向自Moment about the mean） In probability theory and statistics, a central moment is a moment of a probability distribution of a random variable about the random variable's mean; that is, it is the expected value of a specified integer power of the deviation of the random variable from the mean. The various moments form one set of values by which the properties of a probability distribution can be usefully characterised. Central moments are used in preference to ordinary moments, computed in terms of deviations from the mean instead of from the zero, because the higher-order central moments relate only to the spread and shape of the distribution, rather than also to its location.
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Moment about the mean

中心矩 Central moment

Central moment 中心矩