決けっ定てい係けい数すう

noun

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.