Texas Instruments TI-30X Teachers Guide - Page 82
Removing Data Points
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Removing Data Points (Cont.) Return to the first data point. Display the lowest score, drop it, and then find the new mean (v). Clear all data by exiting STAT mode. Press v Display X1=85 S $ $ $ $ STAT DEG X3=53 S $ 0 < u " %˜ < STAT FRQ=0 STAT DEG S 0. DEG n v- Sx sx 86. STAT DEG EXIT ST: Y- N STAT DEG ~ DEG %˜ © 1999 TEXAS INSTRUMENTS INCORPORATED TI-30X ÙS: A Guide For Teachers 78
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© 1999
T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X
Ù
S: A Guide For Teachers
78
Removing Data Points
(Cont.)
%
˜
Return to the first data point.
Display the lowest score, drop it,
and then find the new mean (
v
).
Clear all data by exiting
STAT
mode.
Press
Display
v
X
1
=85
S
STAT
DEG
$
$
$
$
X
3
=53
S
STAT
DEG
$
0
<
FRQ=0
S
0.
STAT
DEG
u
"
n
v
Sx
s
x
-
86.
STAT
DEG
%
˜
EXIT ST: Y N
-
STAT
DEG
<
~
DEG