Regression analysis is the technique which is widely used for prediction and forecasting. It is basically used to know that dependent variable is related to which independent variable. Linear regression is used to estimate the relationships between variables by fitting an equation to given data. Linear Regression is used to predict the value of y which is dependent on x (explanatory variable or independent). If we consider one independent variable it is referred to as Linear Regression. While if we consider more than one independent variable it is referred to as Multiple Linear Regression models.

The equation of Linear Regression is