7. Statistical calculation.
Example:
(1) What is the average and standard deviation?
Data: 55, 53, 57, 54, 51, 56, 55, 52
Key Input
[SHIFT] [SD]
[5] [5] [DATA]
[5] [3] [DATA]
[5] [7] [DATA]
[5] [4] [DATA]
[5] [1] [DATA]
[5] [6] [DATA]
[5] [5] [DATA]
[5] [2] [DATA]
[ x ]
[SHIFT] [ Σ x]
[SHIFT] [ Σ x
[ σ
n–1
[x
[SHIFT] [ σ
[SHIFT] [SD]
SR135_English_090326.rtf
2011/12/29
5 [+/–] [a] 8 [b]
[=]
[b]
Display
SD
0
1
2
3
4
5
6
7
8
54.125
433
2
]
23465
[n]
8
]
2.031009601
2
]
4.125
]
1.899835519
n
0
-
E16 -
SIZE
DEG
DEG
DEG
Note
set statistics mode
display the volume
of input data
Average of datum
Total of datum
Total of square of datum
Number of input data
Standard deviation of
samples ( σ
)
n–1
Unbiased of variance
Standard deviation of
population ( σ
)
n
Clear the statistics mode
("SD" clear)
:
140x75mm
CPLX
8.
CPLX
222.
CPLX
606.
SCALE
2:1