– Someone please explain R-squared regression to me!

Question

Seriously. I will need it for work. I haven’t been able to understand that shit from any online resource until now. Please ELI5

In: 380

Answer 1

Not at all what OP was asking, but my favourite thing about regression is where the name came from. The term was coined by [Francis Galton in 1886](https://www.jstor.org/stable/2841583) to describe the tendency for tall people to have more average-height descendants. He used a line through a correlation to show this. He called the phenomenon “regression toward mediocrity” (!) and the name got stuck to the analysis he used to show it. Hence, regression analysis.