If you apply the values as the "radio button choice" value of each field (under Properties - Options) then you'll be able to use the built-in calculation commands to do these operations.
Where would these built-in calculations be displayed? or how do I make them displayed?
I've set the value as a numeric value I just don't know how to get the sum of the values selected.
Where the result would be displayed? I had assumed you created a text field for it... If not then you should, and you'll find the calculation options under its Properties - Calculate tab.
Yes I just did that. One last thing I'd like to know, I've done a google search and still a little confused. How can I get:
(sum of values)/91
Let's say the fields are called Radio1, Radio2, Radio3, etc.
Under the "simplified field notation" option in the Calculate tab enter:
(Radio1 + Radio2 + Radio3) / 91