# Regression Toward the Mean

Fleeting- Référence externe : https://en.wikipedia.org/wiki/Regression_toward_the_mean

regression toward the mean (also called reversion to the mean, and reversion to mediocrity) is the phenomenon where if one sample of a random variable is extreme, the next sampling of the same random variable is likely to be closer to its mean

popularized by Sir Francis Galton during the late 19th century with the publication of Regression towards mediocrity in hereditary stature