The linear regression calculator is designed to determine the best-fitting line for a set of paired data using the least squares method.

- First, input the predictor (X) and response (Y) values with a comma or space separator. Example: 6,10,1,17 or 6 10 1 17.
- Press the 'Calculate' button.
- Finally, the tool returns the linear regression equation (with slope and intercept) and R-squared value associated with the given data points.
- The tool also shows the step-by-step calculation summary and interpretation.

y = mx + b

Where,

m = Slope,

x = Independent (predictor) variable,

b = Intercept (value of y when x = 0).