Simple Linear Regression

Use this calculator to fit a simple linear regression model to the given data.

Simple Linear Regression
  X (Independent Var) Y (Dependent Var)
Enter Data (Separated by comma ,)
Number of pairs of Obs. (n):
Sample Mean:
Sample SD :
Regression Coefficients
Regression equation

Simple Linear Regression

Another method

$$ \begin{aligned} S_{xx}=\sum_{i=1}^n x_i^2- \frac{(\sum_i x_i)^2}{n} \end{aligned} $$

$$ \begin{aligned} S_{xy}=\sum_{i=1}^n x_iy_i- \frac{(\sum_i x_i)(\sum_i y_i)}{n} \end{aligned} $$

$$ \begin{aligned} b=\frac{S_{xy}}{S_{xx}} \end{aligned} $$

$$ \begin{aligned} a=\overline{y}-b \overline{x} \end{aligned} $$

Suggestions and comments will be appreciated.

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