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12
TI36XSUS.DOC MURFE pruning--US version Pat Hatcher
Revised: 06/17/99 4:37 PM Printed: 06/17/99 4:37 PM
Page 12 of 29
Find the sum, mean, population standard deviation, and
sample standard deviation
for the data set: 45, 55, 55,
55, 60, 80. The last data point is erroneously entered as
8, removed with
(
a
, and then correctly entered
as 80.
"
‰
STAT
0.
(
[
STAT
0.
45
4
STAT
1.
55
(
\
3
4
STAT
4.
60
4
STAT
5.
8
4
STAT
6.
8
(
a
STAT
5.
80
4
STAT
6.
(
g
(sum)
STAT
350.
(
]
(mean)
STAT
58.33333333
(
h
(sum of squares)
STAT
21100.
(
_
(
n
weighting)
STAT
10.67187373
(
^
(
n-
1 weighting)
STAT
11.69045194