Correcting Statistical Data; Correcting One-Variable Data; Correcting Two-Variable Data; Summary Of Statistical Calculations - HP 10BII Owner's Manual

Correcting Statistical Data
Incorrect entries can be deleted using CX. If either value of an xy pair
is incorrect, you must delete and reenter both values.
Correcting One-Variable Data
To delete and reenter statistical data:
1. Key in the x-value to be deleted.
2. Press QE) to delete the value. The z-value is decreased by one.
3. Enter the correct value using (29).
Correcting Two-Variable Data
To delete and reenter x,y pairs of statistical data:
1. Key in the x-value, press and then key in the y-value.
2. Press QE) to delete the values. The z-value is decreased by one.
3. Enter the correct х,у pair using @) and (£9).
Summary of Statistical Calculations
Some functions return two values. The STAT annunciator indicates that
two values have been returned. Press to see the hidden value.
Keys Description | © to Display |
Ow Arithmetic mean Mean (average) of the
(average) of the x-values.|_y-values if you entered
ydan.
ее Mean of the x-values
weighted by the y-values.
Sample standard Sample standard
deviation of the x- deviation of ће y-values
values.* if you entered _y-data.*
7: Statistical Calculations 87