the.com/regression
Drawing the laziest line through your data and calling it insight.
means A statistical method for estimating how one variable moves in response to others, fitting a relationship to observed data.
from From Latin regredi, to step back — coined by Francis Galton in the 1880s, who noticed tall parents had children who 'regressed' toward average height.
Galton's peasBorn from measuring sweet pea seed sizes.
Toward the meanExtremes naturally drift back to average.
Least squaresMinimizes squared errors, invented by Gauss and Legendre.