@wikipedia


A set of statistical metrics, characterizing the deviation of a given numerical dataset  from its Mean Value  :

\mu_n = E[ ( x - \mu)^n ] = \frac{1}{N} \sum_{i=1}^N (x_i - \mu)^n

where 


estimating operator



See also


Formal science / Mathematics / Statistics / Statistical Metric 

Natural Science / System / Model