Operation Manual

TI-83 Plus Statistics 365
Statistical Variables
The statistical variables are calculated and stored as indicated below. To
access these variables for use in expressions, press

, and select
5:Statistics
. Then select the
VARS
menu shown in the column below under
VARS
menu. If you edit a list or change the type of analysis, all statistical
variables are cleared.
Variables
1
.
Var
Stats
2
.
Var
Stats Other
VARS
menu
mean of
x
values
vv
XY
sum of
x
values
G
x
G
x
G
sum of
x
2
values
G
x
2
G
x
2
G
sample standard deviation of
xSxSx XY
population standard deviation of
x
s
x
s
x XY
number of data points
nn XY
mean of
y
values
w
XY
sum of
y
values
G
y
G
sum of
y
2
values
G
y
2
G
sample standard deviation of
ySyXY
population standard deviation of
y
s
y XY
sum of
x
…
y
G
xy
G
minimum of
x
values
minX minX XY