平へい均きん偏へん差さ

Meanings

1

noun

mean deviation; average deviation

A statistical measure of dispersion; the average of the absolute deviations from the mean. Used in mathematics and data analysis.

distinction, difference, variation

標ひょう準じゅん偏へん差さ
Standard deviation uses squared deviations and is more common in statistics; mean deviation uses absolute deviations.
分ぶん散さん
Variance is the average of squared deviations, while mean deviation uses absolute values.

Compound of 平均 (mean, average) and 偏差 (deviation). A straightforward technical term.