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题目内容双击单词支持查询和收藏哦～
If two numbers are randomly selected from positive integers from 1 to 10 such that no number is selected twice, what is the probability that the difference of the two selected numbers is 1?
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。
