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When flipping a coin, there are 2 possible outcomes. When flipping 3 coins there are 8 possible outcomes (2^3=8).

As for the situation described, there is only one way for it to not be true, if all the coins land on the same side. So either all heads or all tails.

This leaves 8-2=6 possible outcomes resulting in the above situation.

Therefore the probability of the given situation is 6/8 or 3/4=75%

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Q: What is the probability of three people flipping a coin and two having the same side and the other not?
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