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发帖数: 8 | 1 一个百思不得其解的概率问题：
There are B buyers and S sellers on the market. Buyers are looking for
sellers. Each buyer has the same probability of finding a seller. Then there
is probability of P that this buyer and seller agree to trade. If they do
agree, this pair of buyer and seller will leave the market. If they do not
agree, the buyer will continue the search.
The question is: after all buyers finish their search, what is the probability
that a buyer does not get a good? What is the probability that a s |
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