Texas Instruments TI-83 PLUS - Manual (Page 355)

TI-83 Plus Statistics 352
Regression Model Features
Regression Model Features
STAT CALC
menu items 3 through C are regression models. The automatic
residual list and automatic regression equation features apply to all
regression models. Diagnostics display mode applies to some regression
models.
Automatic Residual List
When you execute a regression model, the automatic residual list feature
computes and stores the residuals to the list name
RESID . RESID
becomes an item on the
LIST NAMES
menu (Chapter 11).
The TI-83 Plus uses the formula below to compute RESID list elements.
The next section describes the variable RegEQ .
RESID = Ylistname
N RegEQ ( Xlistname )