Simple Linear Regression

Regression analysis is a method for exploring and analysing the relationship between a response variable and a number of explanatory variables. If the response variable is denoted by y and the explanatory variables by x1,…,xp, the regression function $${\rm{y}} = {\rm{f}}({{\rm{x}}_1}, \ldots ,{{\rm{x}}_{\rm{p}}})$$ reproduces or describes the response y for given values of the explanatory variables.