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Subject: 
Re: math question (or pattern... whatever...)
Newsgroups: 
lugnet.off-topic.geek
Date: 
Tue, 4 Mar 2003 19:52:25 GMT
Viewed: 
375 times
  
In lugnet.off-topic.geek, James Brown writes:

You're also being incompletely rigorous. :)  If you want to do an "all
possible outcomes" probability check, you have to add in all the 'door
revealed=prize' options which exist for the sake of the probabilities
involved, but are never invoked because the host will never show you the
winning door.  It's been very thoroughly examined - the odds are 2/3.  Check
out the links in this thread, some of which have simulation programs to
calculate the odds the long way for you.


Which is why those are left out: there never enter the scenario.  Only those
that would actually happen are "invoked".

And the simulator supports my conclusions.  Only if the host "cheats" does
the 2/3 option become statistically correct.  :-)

-->Bruce<--



Message has 1 Reply:
  Re: math question (or pattern... whatever...)
 
(...) The host does cheat: he always reveals a losing door. That's part of the basic premise. (22 years ago, 4-Mar-03, to lugnet.off-topic.geek)

Message is in Reply To:
  Re: math question (or pattern... whatever...)
 
(...) You're also being incompletely rigorous. :) If you want to do an "all possible outcomes" probability check, you have to add in all the 'door revealed=prize' options which exist for the sake of the probabilities involved, but are never invoked (...) (22 years ago, 4-Mar-03, to lugnet.off-topic.geek)

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