CentralMoment
CentralMoment[data, r] gives the order r central moment of data.
CentralMoment[data, {r1, ..., rm}] gives the multivariate central moment of order {r1, ..., rm}.
CentralMoment[dist, r] gives the central moment of the distribution dist.
Examples
Compute the second central moment (variance):
CentralMoment[{1, 2, 3, 4, 5}, 2]
(* 2 *)Third central moment of a distribution:
CentralMoment[NormalDistribution[0, 1], 3]
(* 0 *)Please visit the official Wolfram Language Reference for more details.