Windows 7: accessories: the calculator: standard deviation
The tutor brings up another great find from the Windows Start menu.
I’ve rediscovered the Windows 7 calculator. It can be opened by typing calc.exe into the search box (Start Menu), or else at the Command Prompt. It’s also available from Start→All Programs→Accessories.
If you want to calculate the standard deviation of a set of numbers, open the calculator, then click View and choose Statistics. After keying in each number, click Add. Then, to find the standard deviation that you prefer, click σn or σn-1.
To enter a negative number, it seems, you must key the number first, then the ± key. To clear all your entries, do a right click, then Clear dataset.
I find the Statistics Mode of the Windows 7 calculator very simple and convenient. I hope you’ll agree.
Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.