Table of Contents
Advertisement
S
Statistical Calculations
The
and
keys are used to enter and edit statistical data for
one- and two-variable statistics. The data is accumulated in a set of
statistical registers, which are automatically created when you enter
the data. Once you've entered the data, you can use the STAT menu,
which is accessed by pressing [STAT], to calculate:
B One-variable statistics: mean and standard deviation.
B Two-variable statistics: linear regression and linear estimation.
B Weighted mean.
W Summation statistics: n, Zx, Zy, Zx?, Zy%, and Zaxy.
Entering Statistical Data
There is no limit on the number of values you can accumulate into
the statistical registers. However, if
causes the value of a statisti-
cal register to exceed 9.99999999999 x 10%4%°, the HP-22S displays a
temporary overflow warning.
Entering Data for One-Variable Statistics
To enter data for one-variable statistics:
1. Clear any previously stored statistical data by pressing
W(CLEAR) {Z}.
2. Key in the first value and press (+]. The HP-22S displays
n=1.00800.
3. Continue entering values by keying in the numbers and pressing
(2+]. The n-value is updated with each entry.
60
5: Statistical Calculations
Advertisement
Table of Contents
