HP 10bII - Entering Statistical Data; One-Variable Statistics; Two-Variable Statistics and Weighted Mean

Entering Statistical Data
There is no limit to the number of values you can accumulate in the
statistical registers.”
One-Variable Statistics
To enter x data for one-variable statistics complete the following steps:
1. Clear the statistical registers by pressing ФС).
2. Enter the first value and press Œ. The HP 10BII displays л, the
number of items accumulated.
3. Continue accumulating values by entering the numbers and pressing
(£9. The z-value is incremented with each entry.
Two-Variable Statistics and Weighted Mean
To enter х;у pairs of statistical data complete these steps:
1. Clear the statistical registers by pressing COLD.
2. Enter the first x-value and press @. The HP 10BII displays the x-
value.
3. Enter the corresponding y-value and press Œ). The HP 10BII
displays л, the number of pairs of items accumulated.
4. Continue entering х;у pairs. The z-value is incremented with each
entry.
‘To enter data for calculating the weighted mean, enter each data value as
x, and its corresponding weight as у
* If statistical data causes the value of a register to exceed 49.99999999999 x 10, the HP 10BII displays а
temporary overflow warning (OFLO).
86 7: Statistical Calculations