Question: how to do a linear regression ti-84?
Answer: Enter your data in L1 and L2. Note: Be sure that your Stat Plot is on and indicates the Lists you are using.
Go to [STAT] "CALC" "8: LinReg(a+bx). This is the LSRL.
Enter L1, L2, Y1 at the end of the LSRL. [2nd] L1, [2nd] L2, [VARS] "Y-VARS" "Y1" [ENTER]
To view, go to [Zoom] "9: ZoomStat".