Am I measuring the performance of my Multiple Linear Regression model correct?

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Music by Eric Matyas
https://www.soundimage.org
Track title: Puzzle Game 3

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Chapters
00:00 Question
02:56 Accepted answer (Score 1)
03:58 Thank you

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Full question
https://stackoverflow.com/questions/4897...

Question links:
[a nice article]: http://www.ritchieng.com/machine-learnin...
[image]: https://i.stack.imgur.com/1L5KD.png
[image]: https://i.stack.imgur.com/sLHbN.png
[Here]: http://www.sharecsv.com/s/b62ab1baad4e7a...

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Tags
#python #machinelearning #regression

#avk47