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Old 12-17-2004, 07:12 PM  
X37375787
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Quote:
Originally posted by SilverTab
you're making too much sense for this thread

whatever you flip a coin 1 time or 1000 times...the odds are always 50/50


in the Monty case..they are always of 66/33


flipping a coin... of course it's .5 for either side, because you do have two sides which equates to 1/2. In the dice case, P(1)=P(2)=1P(3)=P(4)=P(5)=
P(6) = 1/6.

I believe the empirical evidence that P(win|switch)= 2/3 - however let me try to work this out by myself.

P(win at first try) = 1/3
P(miss at first try) = 2/3 - evenly distributed.

You do not switch - P(win) remains at 1/3.

If you missed with P(miss)=2/3, the prize is behind one of the remaining doors. If you miss and switch, your probability to win equates

1 - P(picked winner at first try) = 1 - 1/3 = 2/3.

So if you don't switch, your P(win) equates P(win picked at first try) which is constant at 1/3.


That sounds reasonable to me.
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