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题目内容双击单词支持查询和收藏哦～
Among 50 spare parts. 2 are broken. What is the probability that both are broken when you select two spare parts from the total?
Give your answer as a fraction.
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· 相关考点
6.4.1 古典概率
6.4.1 古典概率
以上解析由 考满分老师提供。
