Uploaded May 2026 | Updated September 2026, 1 week ago

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This StatQuest takes you through basic linear regression, step-by-step, explaining both the method and the motivation behind the method. Each step is broken down into easy-to-understand parts so that anyone can develop a deep understanding of how to do and interpret a linear regression. BAM!

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0:00 Awesome song and introduction
9:45 Quantifying Prediction Accuracy with the Sum of Squared Residuals
14:43 Fitting a Line with Least Squares
17:11 Assessing Predictions with R-Squared
24:29 Assessing Predictions with a p-value
30:03 Putting it all together


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