Printed Date : 2003/4/24
Size : 17.7 x 25.2 cm
   Start grouped standard deviation program.  ; Clears statistics registers (28 through 33).
 
 !  Clears the count N. Checksum and length: 104F 006.0
   Input statistical data points.  "! %Stores data point in X.
 "! Stores data–point frequency in F.   Enters increment for N.
   Recalls data–point frequency fi. Checksum and length: 4060 007.5
   Accumulate summations.
  
 ! L Stores index for register 28.  
16–18 Statistics Programs
File name 32sii-Manual-E-0424
Program Lines:
Description
This program allows you to input data, correct entries, and calculate the standard deviation and weighted mean of the grouped data.

0.8 f

%/) Stores 0.8 (100 percent minus 20

 

percent) in Q(X) and calculates X.

Grouped Standard Deviation

The standard deviation of grouped data, Sxy, is the standard deviation of data points x1, x2, ... , xn, occurring at positive integer frequencies f1, f2, ... , fn.

 

x 2

(xifi)2

 

fi

Sxg =

i

 

(fi ) 1