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How to plot residual graphs on Ti-83

J. ShiJ. Shi Registered User Posts: 634 Member
edited February 2007 in AP Tests Preparation
So, does anyone know how to do this the quick was on the Ti-83? I know the slow was: L2-Y1*L1. That is essentially the definition of a residual, and can be quite tedious to put into L3. So is there like a quick button to push or something if I have my data stored in L1 and L2 and I just want to find the residual of that?
Post edited by J. Shi on

Replies to: How to plot residual graphs on Ti-83

  • blah123blah123 Registered User Posts: 320 Member
    u do linear regression with the TI on L1 and L2.

    then go to list(above stat function). under "names" there should be a 7th function now call "resid". plug that as L3. graph L1 with L3 with the plot function

    u can only do resid after linear reg
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