HP (Hewlett-Packard) HP 33s Calculator User Manual


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16–18 Statistics Programs
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 Listing:
Program Lines:
(In ALG mode)
Description

Start grouped standard deviation program.

Clears statistics registers (28 through 33).


Clears the count N.
Checksum and length: EF85 24

Input statistical data points.

Stores data point in X.

Stores data–point frequency in F.

Enters increment for N.


Recalls data–point frequency f
i
.
Checksum and length: 184C 30

Accumulate summations.


Stores index for register 28.


Updates
∑
i
f
in register 28.

ii
fx




Stores index for register 29.


Updates
∑
ii
fx
in register 29.

i
2
i
fx


Stores index for register 31.



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