The concepts behind linear regression, fitting a line to data with least squares and R-squared, are pretty darn simple, so let's get down to it! NOTE: This StatQuest comes with a companion video for how to do linear regression in R:    • Linear Regression in R, Step-by-Step  
You can also find example code at the StatQuest github: https://github.com/StatQuest/linear_r...

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0:00 Awesome song and introduction
0:37 The Main Ideas!!!
1:12 Review of fitting a line to data
4:00 Review of R-squared
12:13 R-squared for a multivariable model
14:16 Why adding variables will never reduce R-squared
16:08 Calculating a p-value for R-squared
25:26 The F-distribution

Correction:
25:39 I should have (Pfit - Pmean) instead of the other way around.

#statquest #regression