Correlation vs Regression: Know here what is the difference between Correlation and Regression. Both are important statistical tools for data analysis but Correlation is used only for association ...

As Daniel Kahneman notes in his 2011 book Thinking, Fast and Slow: “It took Francis Galton several years to figure out that correlation and regression are not two concepts – they are different ...

He published a book, the famous Hereditary Genius (Galton, 1869) to explain this curious phenomenon to himself, and in the process discovered the law of statistical correlation and regression.

With a correlation that low, there will be some mean regression at work. Think of it this way. Seven door-to-door salesmen go out and sell as many vacuum cleaners as they can on a Sunday.