Regression

Regression is a statistical method of relating a causal variable, such as an economic indicator, to sales. Future sales are then forecast by inserting the estimated causal variable into the equation.

Definitions

According to Product Manager's Handbook by Gorchels (2nd edition),

Regression. A statistical method of relating a causal variable, such as an economic indicator, to sales. Future sales are then forecast by inserting the estimated causal variable into the equation.