甲.乙两名教师进行乒乓球比赛,采用七局四胜制(先胜四局者获胜),若每一局比赛甲获胜的概率为2/3,乙获胜的概率为1/3,现已赛完两局,乙暂时以2:0领先.(1)求甲获得这次比赛胜利的概率(2)分别求
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/17 03:08:11
![甲.乙两名教师进行乒乓球比赛,采用七局四胜制(先胜四局者获胜),若每一局比赛甲获胜的概率为2/3,乙获胜的概率为1/3,现已赛完两局,乙暂时以2:0领先.(1)求甲获得这次比赛胜利的概率(2)分别求](/uploads/image/z/6822195-51-5.jpg?t=%E7%94%B2.%E4%B9%99%E4%B8%A4%E5%90%8D%E6%95%99%E5%B8%88%E8%BF%9B%E8%A1%8C%E4%B9%92%E4%B9%93%E7%90%83%E6%AF%94%E8%B5%9B%2C%E9%87%87%E7%94%A8%E4%B8%83%E5%B1%80%E5%9B%9B%E8%83%9C%E5%88%B6%28%E5%85%88%E8%83%9C%E5%9B%9B%E5%B1%80%E8%80%85%E8%8E%B7%E8%83%9C%29%2C%E8%8B%A5%E6%AF%8F%E4%B8%80%E5%B1%80%E6%AF%94%E8%B5%9B%E7%94%B2%E8%8E%B7%E8%83%9C%E7%9A%84%E6%A6%82%E7%8E%87%E4%B8%BA2%2F3%2C%E4%B9%99%E8%8E%B7%E8%83%9C%E7%9A%84%E6%A6%82%E7%8E%87%E4%B8%BA1%2F3%2C%E7%8E%B0%E5%B7%B2%E8%B5%9B%E5%AE%8C%E4%B8%A4%E5%B1%80%2C%E4%B9%99%E6%9A%82%E6%97%B6%E4%BB%A52%3A0%E9%A2%86%E5%85%88.%281%29%E6%B1%82%E7%94%B2%E8%8E%B7%E5%BE%97%E8%BF%99%E6%AC%A1%E6%AF%94%E8%B5%9B%E8%83%9C%E5%88%A9%E7%9A%84%E6%A6%82%E7%8E%87%282%29%E5%88%86%E5%88%AB%E6%B1%82)
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