Citizen SRP-145N Manuel D'instructions page 14

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• Instead of entering directly each data, when often several item of
data have the same value, you can enter the value and the number
of occurrences.
(Ex.) : Enter the following data to calculate n, Σ x, Σ x
σ
, where data 1 = 2, data 2~4 = 5, data 5~6 = 9
n
[ 2ndF ] [ SD ]
[ 2ndF ] [ CAD ]
2 [ DATA ] 5 [ DATA ] 5 [ DATA ] 5 [ DATA ]
9 [ DATA ] 9 [ DATA ]
– or –
2 [ DATA ] 5 [ x ] 3 [ DATA ] 9 [ x ] 2
[ DATA ]
[ n ]
2
[ 2ndF ] [ Σ x ]
[ 2ndF ] [ Σ x ]
[ x ]
[σ ]
n–1
[ 2ndF ] [σ ]
n
Note:
The sample standard deviation σ
The population standard deviation σ
The arithmetical mean x is defined as :
• To delete an incorrect entry, press [ DEL ].
PROGRAMMING
With your programmable scientific calculator, complex repeated
calculations are no longer time–consuming chores. All you have to do
is tell the calculator what you want to do in a way it can understand (in
other word, program it).
Your calculator can store one procedure with up to 40 steps. These
"steps" can be either steps (like mathematical functions) or characters
(like numbers). Each function counts as one steps. It remembers the
SRP-145N_English_Black_SR135A_090330.doc
SCALE 2:1
2
, x , σ
n–1
SD DEG
SD DEG
SD DEG
SD DEG
SD DEG
SD DEG
SD DEG
5.833333333
SD DEG
2.714160398
SD DEG
2.477678125
( )
2
∑
x
∑ 2
x –
is defined as :
n–1
n
−
n 1
( )
2
∑
x
2
∑ x –
is defined as :
n n
n
∑ x
n
-E13-
SIZE: 140x75mm
2009/3/30
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0.
0.
6.
6.
241.
35.