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题目内容双击单词支持查询和收藏哦～
There are 4 fiction books and 6 non-fiction ones, while 3 of the non-fiction are biographies. Now choose 3 books from the total 10 books. What is the probability of at least one fiction and no more than 1 biography are selected?
Give your answer as a fraction.
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6.3.5 组合
6.3.5 组合
以上解析由 考满分老师提供。
