What is the standard deviation of the residuals?

What is the standard deviation of the residuals?

 

Solution

The residual standard deviation is a statistical term used to describe the standard deviation of points formed around a linear function, and is an estimate of the accuracy of the dependent variable being measured.

Residual standard deviation is also referred to as the standard deviation of points around a fitted line.

The residual standard deviation can be calculated when a regression analysis has been performed, as well as an analysis of variance (ANOVA).

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