Statistical Calculation - Citizen SR-135N Instruction Manual

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