quadratic fit - Wolfram|Alpha

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Assuming "quadratic fit" refers to a computation | Use as a general topic instead
data set of y values:  

Input interpretation:

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Least-squares best fit:

link to /input/?i=-3.5%2B2.875+x%2B1.01786+x%5E2&lk=1&a=ClashPrefs_*Math-
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Fit diagnostics:

link to /input/?i=21.4791&lk=1&a=ClashPrefs_*Math-link to /input/?i=20.6461&lk=1&a=ClashPrefs_*Math-link to /input/?i=0.998147&lk=1&a=ClashPrefs_*Math-link to /input/?i=0.996911&lk=1&a=ClashPrefs_*Math-
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Plot of the residuals:

Frame
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Download full output as:

CDF  PDF
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