HP 35s

16-20 Statistics Programs
 
Updates in register -30.
  
   Increments (or decrements) N.
  
  
 
  
   Displays current number of data pairs.
   Goes to label line numberI for next data input.
Checksum and length: F6CB 84
   Calculates statistics for grouped data.
  Grouped standard deviation.
  
   Displays grouped standard deviation.

Weighted mean.
  
   Displays weighted mean.
   Goes back for more points.
Checksum and length: DAF2 24
   Undo data–entry error.
 
Enters decrement for N.
  
   Recalls last data frequency input.
  Changes sign of f
i
.
  
   Adjusts count and summations.
Checksum and length: 03F4 23
Program Lines:
(In ALG mode)
Description
∑
ii
fx
2
