b***k
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eventhorizon (洒水车) 于 (Wed Dec 12 01:08:25 2007) 提到:
A poll was taken between two candidates A and B. A gets X votes, and B gets
Y votes, with X>Y. If the votes were counted one by one, what is the
probability that there was a tie at any time during the counting?
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Francais (cais) 于 (Wed Dec 12 01:35:36 2007) 提到:
Let Zt be the difference of votes at time t.
a tie can only happen at times with even values
so P( |
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