© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI
-
34
Û
: A Guide for Teachers
91
Viewing the Data
(Continued)
u
Find the number of data points
(n), the mean (
v
), the sample
standard deviation (Sx), the
population standard deviation
(
s
x), the sum of the scores (
G
x),
and the sum of the squares (
G
x
2
).
Press Display
u
n ‡ Sx „x
¹
-
5.
STAT
"
n ‡ Sx „x
¹
-
79.4
STAT
"
n ‡ Sx „x
¹
--
16.39512123
STAT
"
n ‡ Sx „x
¹
--
14.66424222
STAT
"
¸
Š” Šx
2
--
397.
STAT
"
¸
Š” Šx
2
---
32597.
STAT
