不偏 ふへん分散 ぶんさんではありませんでした
fuhembunsandewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 不偏分散

1. Was not impartial distribution.; Was not unbiased dispersion.

Past/Perfective
Negative
Polite
Formal Register
Mathematics