觉得这个总结的不错，白富美的概率是千分之八，所以学生人数1000的学校，白富美大约有8个。

来源: Shubin 于 2024-02-07 16:16:24 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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