【单选题】【消耗次数:1】
有朋自远方来,乘火车、船、汽车、飞机来的概率分别为0.3,0.2,0.1,0.4,迟到的概率分别为0.25,0.3,0.1,0,则他迟到的概率( )
0.414
0.06
0.65
0.145
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相关题目
【单选题】 有朋自远方来,乘火车、船、汽车、飞机来的概率分别为0.3,0.2,0.1,0.4,迟到的概率分别为0.25,0.3,0.1,0,则他迟到的概率( )
①  0.414
②  0.06
③  0.65
④  0.145
【单选题】 有朋自远方来,乘火车、船、汽车、飞机来的概率分别为0.3,0.2,0.1,0.4,迟到的概率分别为0.25,0.3,0.1,0。假设他已经迟到了,请问他是做船来的概率( )
①  0.414
②  0.06
③  0.65
④  0.145
【单选题】 有朋自远方来,乘火车、船、汽车、飞机来的概率分别为0.3,0.2,0.1,0.4,迟到的概率分别为0.25,0.3,0.1,0。假设他已经迟到了,请问他是做船来的概率( )
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【单选题】 3人独立去破译一个密码,他们能译出的概论分别为0.2、0.3、0.4,能将此密码译出的概率为( )
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