Author: Uri Blass
Date: 12:52:34 09/27/02
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On September 27, 2002 at 15:38:29, Rolf Tueschen wrote: >On September 27, 2002 at 15:21:00, Uri Blass wrote: > >> >>The difference is that in the original question I know that the host is not >>going to open my door when in this case I could not know it >>in the beginning of the game. >> >>999998 people in your story had the bad luck that the host opened their door and >>told them that they lost and the I could not know in the beginning of the game >>that I am not going to be one of them. >> >>Uri > >Ok, you show still some lame resistance, Uri, but it will not succeed. :) > >You miss the main point. What is the difference between case 1 (you know that he >won't open your door) and case 2 (you don't know that he opens others but not >yours?) - But did the other guy know that he was the second chosen candidate? >No, he didn't know it. And you are now assuming that he must have the car. > >But to make it more complicated, I say, because I'm the host, the following to >you, I say "Uri you are my special guest today, I won't open your door, all >others must be prepared that I will open their door!" > >Now - what is your answer? Do you have 1/1 million and the other guy has >999999/1 million?????? > >Rolf Tueschen In this case I have 1/1 million and the other guy has 999999/1 miliion. In this case the situation is not simmetric between me and the second guy. Before you ask another question I will answer it in the follwoing lines. If the other guy also knows that you do not open his door then the host usually is going to reveal the car by opening all the other doors so if I have the luck and he could open the other doors without revealing the car then the probability is going to increase to 1/2. Uri
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