An R Introduction to Statistics

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Central Moment

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

Standardized Residual

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

Residual Plot

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

Coefficient of Determination

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

Simple Linear Regression

fractal-07h 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.

y = α + βx+ ϵ