Difference between value and mean or another value can have power {moment, function}: (x - u)^2. First moment is first power of difference: x - u. Second moment {variance, moment} is second power of difference: (x - u)^2. Third moment {skewness, moment} is third power of difference: (x - u)^3. Fourth moment {kurtosis, moment} is fourth power of difference: (x - u)^4.
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Date Modified: 2022.0224