Explore Words Kanji Grammar Guides

Copyright © 2026 Kotomora. All Rights Reserved.

Get the Kotomora apps for iOS and Android.

Explore Words Kanji Grammar Guides About Support Privacy

Copyright © 2026 Kotomora. All Rights Reserved.

決定係数 (ketteikeisuu) Japanese meaning | Kotomora

決けっ定てい係けい数すう

け

っ

て

い

け

い

す

う

Meanings

1

coefficient of determination; R-squared

A statistical measure used in regression analysis to indicate how well data fit a model. Often denoted R².

この回かい帰きモデルの決けっ定てい係けい数すうは0.85で

、

かなり

当あ

てはまり

が

良よ

い

。

The coefficient of determination for this regression model is 0.85, indicating a fairly good fit.

Kanji

決decide, fix, agree upon
定determine, fix, establish
係person in charge, connection, duty
数number, strength, fate

Related words

相そう関かん係けい数すう
相関係数 (correlation coefficient) measures the strength and direction of a linear relationship between two variables, while 決定係数 (coefficient of determination) represents the proportion of variance explained by a model.

Built from

決けっ定てい+係けい数すう

Etymology

Compound of 決定 (decision, determination) and 係数 (coefficient). A direct translation of the English statistical term 'coefficient of determination'.