- #1

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I have a doubt with the least squares fitting (linear fitting).

The low-level statistics textbooks only take into account the statistical error of fitting, but not the error of the fitted points.

How is the error of the fitted points taken into account, and included in the total error of the fitting parameters?

My English is not very good looking, so if something is unclear, I will try to explain it better.

Thank you for your time :)

Greetings!