TrimmedVariance

TrimmedVariance[list,f] gives the variance of the elements in list after dropping a fraction f of the smallest and largest elements.

TrimmedVariance[list,{f1,f2}] gives the variance when a fraction f1 of the smallest elements and a fraction f2 of the largest elements are removed.

TrimmedVariance[list] gives the 5% trimmed variance TrimmedVariance[list,0.05].

TrimmedVariance[dist,…] gives the trimmed variance of a univariate distribution dist.

Examples

Compute trimmed variance with 10% trimming:

TrimmedVariance[{1, 2, 3, 4, 100}, 0.1]
(* 1.25 *)

Default 5% trimmed variance:

TrimmedVariance[Range[100]]
(* 841.25 *)

Please visit the official Wolfram Language Reference for more details.