HP 33S - Page 279

Statistics Programs
16–19
File name 33s-English-Manual-040130-Publication(Edition 2).doc Page : 388
Printed Date : 2004/1/30 Size : 13.7 x 21.2 cm
Program Lines:
(In ALG mode)
Description

Updates
∑
ii
fx
2
in register 31.


Increments (or decrements) N.





Displays current number of data pairs.

Goes to label I for next data input.
Checksum and length: 3080 117

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: 7246 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: E469 33
Flags Used:
None.