Citizen SRP-145N manual Programming

•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, Σx, Σx 2, x , σn–1, σn, where data 1 = 2, data 2~4 = 5, data 5~6 = 9

[ 2ndF ] [ SD ]		SD	DEG
			0.
[ 2ndF ] [ CAD ]		SD	DEG
			0.
2 [ DATA ] 5 [ DATA ] 5 [ DATA ] 5 [ DATA ]		SD	DEG
			6.
9 [ DATA ] 9 [ DATA ]
– or –
2 [ DATA ] 5 [ x ] 3 [ DATA ] 9 [ x ] 2
[ DATA ]
[ n ]		SD	DEG
			6.
[ 2ndF ] [Σx 2	]	SD	DEG
			241.
[ 2ndF ] [Σx ]		SD	DEG
			35.
		SD	DEG
[ x ]
			5.833333333
[σn–1]		SD	DEG
			2.714160398
[ 2ndF ] [σn]		SD	DEG
			2.477678125
Note:

The sample standard deviation σn–1is defined as : ∑ x2 – (∑nx)2

	n − 1
The population standard deviation σn is defined as :	∑ x2	–	(∑ x)2
			n
		n

The arithmetical mean x is defined as : ∑ x n

•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

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