Texas Instruments TI-84 Plus Guide Book

Chapter 12: Statistics 316
Q
QQ
Q1
11
1 and Q
and Q and Q
and Q3
33
3
The first quartile (Q1) is the median of points between minX and Med (median). The third
quartile (
Q3) is the median of points between Med and maxX.
population standard deviation of y
sy
XY
sum of x
… y Gxy G
minimum of x values minX minX XY
maximum of x values maxX maxX XY
minimum of y values minY XY
maximum of y values maxY XY
1st quartile Q1 PTS
median Med PTS
3rd quartile Q3 PTS
regression/fit coefficients a, b EQ
polynomial, Logistic, and SinReg
coefficients
a, b, c,
d, e
EQ
correlation coefficient r EQ
coefficient of determination
r
2
, R
2
EQ
regression equation RegEQ EQ
summary points (Med-Med only) x1, y1, x2,
y2, x3, y3
PTS
Variables
1-Var
Stats
2-Var
Stats Other
VARS
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	-