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.
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