Posted by Sarah on Tuesday, October 26, 2010 at 8:18am.
I think this is trick question.
If 3 are correct, how can the fourth be wrong?
So all 4 will have to be right.
prob of that = 1/4! = 1/24
Exactly 3 is impossible. If 3 were right, 4 would have to be right. The chances of exactly 3 would be 0.
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