5 [+/–] [a] 8 [b]
[=]
[b]
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]
2
[SHIFT] [ Σ x
]
[n]
[ σ
]
2.031009601
n–1
2
[x
]
[SHIFT] [ σ
]
1.899835519
n
[SHIFT] [SD]
SR135_English_090326.rtf
2009/3/26
DEG
DEG
DEG
Display
Note
SD
0
set statistics mode
1
display the volume
2
of input data
3
4
5
6
7
8
Average of datum
54.125
433
Total of datum
Total of square of datum
23465
8
Number of input data
Standard deviation of
samples ( σ
)
n–1
4.125
Unbiased of variance
Standard deviation of
population ( σ
)
n
Clear the statistics mode
0
("SD" clear)
-
E16 -
SIZE : 140x75mm
CPLX
8.
CPLX
222.
CPLX
606.
SCALE 2:1