Casio 991es Stat Please Help!
Posted 16 February 2009 - 08:39 PM
How can i calc mean mod avarage and etc. if i have a table of X and Y?
8 pepole earn 100$
9 pepole earn 200$
what is the avarage income?
Posted 08 March 2009 - 12:42 PM
Hope that this helps.
Posted 21 March 2009 - 07:03 PM
You cannot do such advanced statistics with the fx-991ES.
You actually can; it's pretty simple:
Enter Statistics Mode: Mode -> 3;
Select a Type (Experiment with the options to find a suitable one, for your example use 1); [number]
Enter the Data for each line, and press =; 100 = 100 = ...
Clear the Screen; AC
Enter the Variable Menu; Shift -> 1 -> 5
Select the value you want; [number]
By looking around in the Statistics menu (Shift -> 1 in STAT Mode) you can find all kinds of values for your set of data.
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