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A tutorial on computing the central moments of an observation variable in statistics.

A tutorial on the normal probability plot for the residual of a simple linear regression model.

A tutorial on the standardized residual of a simple linear regression model.

A tutorial on the residual of a simple linear regression model.

A tutorial on the prediction interval for a simple linear regression model.

A tutorial on the confidence interval for a simple linear regression model.

A tutorial on the significance test for a simple linear regression model.

A tutorial on the coefficient of determination for a simple linear regression model.

A tutorial on estimated regression equation for a simple linear regression model.

A simple linear regression model that describes the relationship between two variables x and y can be expressed by the following equation. The numbers α and β are called parameters, and ϵ is the error term.