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Probability
A cent or more? (
Posted on 2017-05-01
)
Mary had exactly 21 coins in her purse, total value of a round dollar.
While counting her money, she dropped a coin.
Evaluate the probability it was a penny.
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Submitted by
Ady TZIDON
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Subject
Author
Date
Coin distribution
Brian Smith
2017-05-01 10:25:44
conditional nature of the problem (spoilers)
Charlie
2017-05-01 08:56:54
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