Texas Instruments TI-30X Teachers Guide - Page 81
Viewing the Data - 30x standard deviation
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Viewing the Data (Cont.) Find the number of data points (n), the mean (v), the sample standard deviation (Sx), the population standard deviation (sx), the sum of the scores (Gx), and the sum of the squares (Gx2). Press u " " " " " Display n- v Sx sx 5. ¹ STAT DEG n v- Sx sx ¹ 79.4 STAT DEG n v -S-x- sx ¹ 16.39512123 STAT DEG n v Sx -s-x- ¹ 14.66424222 STAT DEG ¸-G-x- Gx2 397. STAT DEG ¸Gx -G-x-2 32597. STAT DEG u Continued © 1999 TEXAS INSTRUMENTS INCORPORATED TI-30X ÙS: A Guide For Teachers 77
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© 1999
T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X
Ù
S: A Guide For Teachers
77
Viewing the Data
(Cont.)
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
v
Sx
s
x
¹
-
5.
STAT
DEG
"
n
v
Sx
s
x
¹
-
79.4
STAT
DEG
"
n
v
Sx
s
x
¹
---
16.39512123
STAT
DEG
"
n
v
Sx
s
x
¹
---
14.66424222
STAT
DEG
"
¸
G
x
G
x
2
---
397.
STAT
DEG
"
Continued
¸
G
x
G
x
2
---
32597.
STAT
DEG