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A 'classic' prob stat question....
A bag holds three coins. One is double-headed and the other two are fair. A coin is selected at random and flipped four times. What is the probability that the coin is double-headed if it is observed that the coin lands heads up on each of the four tosses? This is from last Spring's final. See if you can get it. (http://www.math.gatech.edu/~belinfan.../pdf/final.pdf) |
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