Sharp EL-531LH Mastering Instructions page 30

Note:
For the Sharp EL-531GH
Step 3:
Step 4:
After you are in the statistics mode and cleared the statistics memories, the keystrokes
required are:
The screen should display n = 5.
OR
and the display will read 5 (you can skip this step)
and the display will read 3. This is the mean
and the display will read 13.87443693. This is the sample standard deviation s
and the display will read 192.5. This is the variance s
The mean is 3, the standard deviation is 13.87 and the variance is 192.5.
The button accesses a number of extra statistical functions.
= Σx
2
= Σx
In the example below, the progressive calculations are shown simply to give you some
understanding of the underlying processes – you should do one or two examples in detail and
then check them by calculator.
Mastering the Calculator using the Sharp EL-531LH
x
2
27