WTF is a Regression

re·gres·sion /rəˈɡreSH(ə)n noun 1. a return to a former or less developed state. 2. STATISTICS a measure of the relation between the mean value of one variable (e.g., output) and corresponding values of other variables (e.g., time and cost). Regression analysis is commonly cited in the data science community (and science in general), a building […]