On Lotteries with Unique Winners
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چکیده
Pr(unique winner) Pr(unique winnerjchoice is good) Pr(choice is good): The probability that the choice is good is at least 1 ? 1 p N , by the previous claim. In such a case we are exactly in the same situation as in the original lottery. By assumption, this lottery guarantees unique winner with probability at least 2=3 for any set of`participants, hence this is certainly true for a random set of`participants. The claim follows. We deened a lottery for N 1=4 identical participants which has the unique winner property.
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