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题目内容双击单词支持查询和收藏哦～
Each of 10 balls has an integer 0 to 9, inclusive, painted on the side. Shane randomly pick on each time without replacement.
Quantity A
The probability that 5 is picked at the first time
Quantity B
The probability that 5 is picked not until the second time
C显示答案
以上解析由 考满分老师提供。
