Question

甲、乙两人参加普法知识竞赛，共设有10道不同的题目，其中选择题6个，判断题4个，甲，乙依次各抽一题，...

甲、乙两人参加普法知识竞赛，共设有10道不同的题目，其中选择题6个，判断题4个，甲，乙依次各抽一题，计算：（1）甲抽道选择题，乙抽到判断题的概率是多少？（2）甲、乙二人中至少有一人抽到选择题的概率是多少？

Answer 1

(1) P=C61*C41/(C101*C91)=24/90=4/15
(2) P=1-- <C41*C31/(C101*C91)> = 1 - 12/90 =13 /15
回答完毕，望采纳！

Answer 2

（1）甲抽道选择题，乙抽到判断题的概率是多少？（6/10）X(4/9)=4/15
(2）甲、乙二人中至少有一人抽到选择题的概率是多少？1-(4/10)X(3/9)=13/15

Answer 3

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Answer 4

4/9,3/5

Answer 5

九分之2