Re: Probability BrainTeaser (toughie)
Assuming you will always have 3 pass and one person guess I don't see any way it can be done. It's like seeing the results of 3 coinflips and using those to predict the 4th. No way. I just don't get how seeing the other 3 cards helps here.
Each guess is 50/50, and having multiple people guess just cuts the odds of them both being right in half. So to get a 75% probability that everyone who guesses will guess right seems impossible!
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