Posted by1 year ago
Casio might be able to supply a print bound version also, at a price but usually one is referred to online support for things like that. There does not appear to be a mod function standard on the fx991es plus either.
Archived
How do I use the Σ function on my Casio fx-991ES Plus' STAT mode?
Hey guys!
I'm not sure if this is the right place to ask, but I guess my question is pretty basic, although specific. What I'm trying to do is automatically calculating something like this:
https://imgur.com/N9yVd2j ; y obviously being the different values of my sample.
on this calculator.
I am able to create a table for all my sample values and the calculator is able to automatically calculate the standard deviation and mean for example. But how do I get the different instances of my variable x into the input screen to calculate?
If this isn't possible to do with the Σ function: Is there a better way to calculate instead of just doing (y1 - ymean)4 + (y2 - ymean)4 and so on?
Thank you very much!
Please excuse if I used weird terms for this problem, it's a bit harder in English.
100% Upvoted