Quote:
Originally posted by Doctor Dre
i don't beleive a word of that crap ...
you got 3, you remove 1
2 boxes, 50/50.
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Read this SLOWLY
There is a 1/3 chance that you'll hit the prize door, and a 2/3 chance that you'll miss the prize. If you do not switch, 1/3 is your probability to get the prize. However, if you missed (and this with the probability of 2/3) then the prize is behind one of the remaining two doors. Furthermore, of these two, the host will open the empty one, leaving the prize door closed. Therefore, if you miss and then switch, you are certain to get the prize. Summing up, if you do not switch your chance of winning is 1/3 whereas if you do switch your chance of winning is 2/3.
THE ONLY CASE WHERE YOU WILL WIN IF YOU DON'T SWITCH IS IF YOU PICKED THE CORRECT BOX ON THE FIRST ATTEMPT = 1/3
THE ONLY CHANCE YOU WILL NOT WIN BY SWITCHING IS IF YOU PICKED THE CORRECT BOX FROM THE START.... (in other words...1/3 chances OF NOT WINNING, HENCE, 2/3 chances of WINNING)