Texas Instruments TI-84 Plus Guide Book

Chapter 12: Statistics 303
The TI-84 Plus uses the formula below to compute RESID list elements. The next
section describes the variable
RegEQ.
RESID = Ylistname N RegEQ(Xlistname)
Automatic Regression Equation
Automatic Regression EquationAutomatic Regression Equation
Automatic Regression Equation
Each regression model has an optional argument,
regequ, for which you can specify a Y=
variable such as
Y1. Upon execution, the regression equation is stored automatically to
the specified Y= variable and the Y= function is selected.
Regardless of whether you specify a Y= variable for
regequ, the regression equation
always is stored to the TI-84 Plus variable
RegEQ, which is item 1 on the VARS Statistics
EQ
secondary menu.

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-