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Posted 2003-09-25, 03:22 PM in reply to Titusfied's post "Probability Riddle"
Right, very good Doofus, although I'm not surprised someone with such worldly knowledge as yourself would have heard this riddle before.

Right, and in lamens terms:

You pick door 1. That is a 1 out 3 chance. 1/3.
The other two doors combined are 2 out of 3 chance. 2/3.
When door 3 is revealed, in essence, door number 2 now has that same 2/3 ratio chance.
Hence, stick with door 1, you have 1/3, switch with door 2, you have 2/3.

Answer: Switch.
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