Least-Squares Regression | Line Formula, Method & Examples

Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables. In its simplest form, simple linear regression examines how a single predictor variable relates to an outcome by fitting a straight line through the data. The line is chosen so that the sum of the squared differences, known as residuals, between the observed data points and the predicted values is minimized. This process, called the least squares method, pr

Least Squares Regression Line

Linear Regression - Problems with Solutions