How accurately does a regression line actually fit your data?
In short: This video explains the standard deviation of residuals, also known as root mean square deviation, to help you measure how well a regression line fits a given set of data points.
The standard deviation of residuals, or root mean square deviation (RMSD), serves as a metric for assessing the quality of a regression line's fit. By calculating this value, you can determine how closely the observed data points align with the predicted values of the model.
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Sources
- Summary by Intellect · source: Standard deviation of residuals or root mean square deviation (RMSD) | AP Statistics | Khan Academy
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