Hi dear friend,
I am providing it with an example.
- I am sorry that the instructions from the maker of the calculator on
how to calculate a standard deviation fell short of your expectations.
All you have to do is follow them key stroke for key stoke, but enter
your own data. If a number is repeated 3 times like the number 55, you
can enter it 3 times or use the shortcut in the exemple
55 [2nd][FREQ]3 [Sigma+].
you make a mistake and enter the wrong number, use the [Sigma-] key to
remove it. That is similar to what a cashier does when an item is
entered twice: it is entered a third time but with minus sign.
time an item is entered, the display shows the total number of items so
far. When it is finished the cashier press the key that sums up the
prices to get the total. This is the role of the [2nd][Sigma X] key
The average number of the data is obtained by the
[2nd][x bar] combination. The last two key combinations display the two
type of deviations.
I hope this will help you. Please vote for me.
Thanks in advance.