不偏分散

ふへんぶんさん

noun

•

unbiased estimate of population variance(mathematics)

不	negative, non-, bad, ugly, clumsy
偏	partial, side, left-side radical, inclining, biased
分	part, minute of time, segment, share, degree, one's lot, duty, understand, know, rate, 1%, chances, shaku/100
散	scatter, disperse, spend, squander