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共分散 (きょうぶんさん) Japanese meaning | Kotomora

共きょう分ぶん散さん

きょ

う

ぶ

ん

さ

ん

Meanings

1

noun

A statistical measure of how two variables change together. Used in mathematics, statistics, and data analysis.

共きょう分ぶん散さんが正せいのとき、二ふたつの変へん数すうは同おなじ方ほう向こうに動うごく傾けい向こうがある。
When the covariance is positive, the two variables tend to move in the same direction.

このデータセットの共きょう分ぶん散さんを計けい算さんしてください。

Please calculate the covariance of this dataset.

Kanji

共together, both, neither
分part, minute of time, segment
散scatter, disperse, spend

Similar words

分ぶん散さん
分散 is variance, measuring the spread of a single variable, while 共分散 is covariance, measuring the joint variability of two variables.
相そう関かん係けい数すう
相関係数 is the correlation coefficient, which is derived from covariance and provides a normalized measure of linear relationship.

Etymology

Compound of 共 (きょう, 'together') and 分散 (ぶんさん, 'variance'), literally 'joint variance'. A modern mathematical term.