平へい均きんへの回かい帰き

expression, noun

regression toward the mean; regression to the mean

A statistical phenomenon where extreme observations tend to be followed by more moderate ones. Used in technical contexts.

• 平へい均きんへの回かい帰きは、統とう計けい学がくの基き本ほん的てきな概がい念ねんの一ひとつです。

  Regression toward the mean is one of the fundamental concepts in statistics.