几道关于概率论与数理统计的问题 1、从1,2,3,4,5五个数码任取3个种不同的数字排成一个三位数:求1:所得三位数为偶数的概率;2:所得三位数为奇数的概率.2、电话号码有8位数字组成,除了
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![几道关于概率论与数理统计的问题 1、从1,2,3,4,5五个数码任取3个种不同的数字排成一个三位数:求1:所得三位数为偶数的概率;2:所得三位数为奇数的概率.2、电话号码有8位数字组成,除了](/uploads/image/z/3505688-8-8.jpg?t=%E5%87%A0%E9%81%93%E5%85%B3%E4%BA%8E%E6%A6%82%E7%8E%87%E8%AE%BA%E4%B8%8E%E6%95%B0%E7%90%86%E7%BB%9F%E8%AE%A1%E7%9A%84%E9%97%AE%E9%A2%98+1%E3%80%81%E4%BB%8E1%2C2%2C3%2C4%2C5%E4%BA%94%E4%B8%AA%E6%95%B0%E7%A0%81%E4%BB%BB%E5%8F%963%E4%B8%AA%E7%A7%8D%E4%B8%8D%E5%90%8C%E7%9A%84%E6%95%B0%E5%AD%97%E6%8E%92%E6%88%90%E4%B8%80%E4%B8%AA%E4%B8%89%E4%BD%8D%E6%95%B0%EF%BC%9A%E6%B1%821%EF%BC%9A%E6%89%80%E5%BE%97%E4%B8%89%E4%BD%8D%E6%95%B0%E4%B8%BA%E5%81%B6%E6%95%B0%E7%9A%84%E6%A6%82%E7%8E%87%EF%BC%9B2%EF%BC%9A%E6%89%80%E5%BE%97%E4%B8%89%E4%BD%8D%E6%95%B0%E4%B8%BA%E5%A5%87%E6%95%B0%E7%9A%84%E6%A6%82%E7%8E%87.2%E3%80%81%E7%94%B5%E8%AF%9D%E5%8F%B7%E7%A0%81%E6%9C%898%E4%BD%8D%E6%95%B0%E5%AD%97%E7%BB%84%E6%88%90%2C%E9%99%A4%E4%BA%86)
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