HP 32SII - Manual (Page 284)

16–20 Statistics Programs
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
Flags Used:
None.
Memory Required:
143 bytes: 71 for programs, 72 for data.
Program Instructions:
1. Key in the program routines; press † when done.
2. Press W S to start entering new data.
3. Key in x
i
–value (data point) and press f .
4. Key in f
i
–value (frequency) and press f .
5. Press f after VIEWing the number of points entered.
6. Repeat steps 3 through 5 for each data point.
If you discover that you have made a data-entry error ( x
i
or f
i
) after you
have pressed f in step 4, press W U and then press f again.
Then go back to step 3 to enter the correct data.
7. When the last data pair has been input, press W G to calculate and
display the grouped standard deviation.
8. Press f to display the weighted mean of the grouped data.
9. To add additional data points, press f and continue at step 3.
To start a new problem, start at step 2.
Variables Used:
X Data point.
F Data–point frequency.
N Data–pair counter.
S Grouped standard deviation.
M Weighted mean.