Citizen SR-270X Manual De Usuario

 

E – 15 

File name : HDB0R100721_English_text_100426.doc 

version : 10/04/26 

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Before entering data, press [ 2nd ] [ SET UP ] [ 

T ] [ 3 ] in sequence 

to set Frequency column as On or Off. FREQ column enables you to 
enter the number of repeats for each of the same value occurred. 
See Example 41. 
1.  From the STAT menu, choose a calculation type. There will be 

two Data Editor formats (1–VAR or 2–VAR / regression Data) 
depending on the type you select. 

2.  Enter an x - value and press [ = ]. 
3.  Enter the frequency ( FREQ ) of the x-value (in 1–VAR mode) or 

the corresponding y-value ( in 2–VAR mode ) and press [ = ]. 

4.  To enter more data, repeat from step 3. 
5.  To exit Data Editor mode to Result displaying mode, press [ AC ] 

and then [ 2nd ] [ STATVAR ] to display STATVAR menu. ( See 
table below ) 

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Once you have entered your data, you can use the functions in 
STATVAR menu by pressing [ 2nd ] [ STATVAR ]: 

1: Type 

Statistical calculation type menu, see the 8 types 
as previously mentioned in STAT menu 

2: Data 

The data editor screen 

3: Edit 

The editing commands sub-menu: [Ins], [Del-A] 

4: Sum 

The summation sub-menu 

5: Var 

The statistical variable sub-menu 

6: MinMax 

The maximum/minimum sub-menu 

7: Reg (2-VAR) 

The regression sub-menu 

Use options 1~3 to view or change data. Use options 4~7 to select 
the desired variable to analyze your data.   
The values of the statistical variables depend on the data you input. 
You can recall them by the key operations shown in the below table. 
Single–variable statistics calculations 

Σ

x 

2 

 

[4: Sum] [ 1 ] 

Sum of all x 

2

 values 

Σ

x   

[4: Sum] [ 2 ] 

Sum of all x values 

n 

[5: Var] [ 1 ] 

Number of the x values entered 

x

   

[5: Var] [ 2 ] 

Mean of the x values 

xσn   

[5: Var] [ 3 ] 

Population  standard  deviation  of  x 
values