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Standardized moment

In probability theory and statistics, the kth standardized moment of a probability distribution is μ_k/σ^k, where μ_k is the kth moment about the mean and σ is the standard deviation.

The third and fourth standardized moments are used to define skewness and kurtosis.

For more information on "moments", please consult Wolfram Research's [mathworld website (http://mathworld.wolfram.com/topics/Moments)].

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