Completing the thread with latest program versions

[Ron Stephens]

In the interest of completeness of the this thread, here is my latest
corrections and updates of my first Python program
(DecisionAnalysisBeta143.py) and a proposed GUI front end coded for me today
by another email correspondent (decisionaaron.py) in Tkinter. I have not
interfaced them yet. (Need to learn how to do that too ;-)))

    Thanks to all form my newbieness. Also don't forget to see Mr. Jeff
Elper'ss version of my idea below (he did in about 65 lines plus comments
what I took almost 400 lines to do so far ;-)))))