CITIZEN SR-135T - Manual (Page 16)

SR8D1A-E.RTF SIZE : 140x75mm SCALE 2:1 2003/8/22
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5 [+/−] [a] 8 [b]
[=]
[b]
DEG CPLX
8.
DEG CPLX
222.
DEG CPLX
606.
7. Statistical calculation.
Example:
(1) What is the average and standard deviation?
Data: 55, 53, 57, 54, 51, 56, 55, 52
Key Input Display Note
SD
[SHIFT] [SD] 0 set statistics mode
[5] [5] [DATA] 1 display the volume
[5] [3] [DATA] 2 of input data
[5] [7] [DATA] 3
[5] [4] [DATA] 4
[5] [1] [DATA] 5
[5] [6] [DATA] 6
[5] [5] [DATA] 7
[5] [2] [DATA] 8
[ x ] 54.125 Average of datum
[SHIFT] [Σx] 433 Total of datum
[SHIFT] [Σx
2
] 23465 Total of square of datum
[n] 8 Number of input data
[σ
n–1
] 2.031009601
Standard deviation of samples
(σn–1)
[x
2
] 4.125 Unbiased of variance
[SHIFT] [σ
n
] 1.899835519
Standard deviation of population
(σn)
[SHIFT] [SD] 0
Clear the statistics mode ("SD"
clear)
(2) Recorrect of data
Key Input Display Note
[SHIFT] [SD] 0 Set statistics mode
[5] [0] [DATA] 1
[6] [0] [DATA] 2 Input the incorrect data (60)