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100件产品中有10件次品,任取5件恰有2件次品的概率_____(只写算式)
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100件产品中有10件次品,任取5件恰有2件次品的概率_____(只写算式)
时间:2021-07-18 13:14
关键词:
连锁经营管理
经济数学
2020学年第一学期期末考试
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