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查看: 1638|回复: 4
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Form 5 add-maths question !
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请教一题辣手的题目！
In an tournament competition, probability of A,B, and C winning the tournament is 1/5 , 1/4 and 1/3,
find the probability the none of them win the tournament . |
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发表于 11-6-2011 01:25 PM
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回复 1# amteacher
如果有出差錯，請多多包涵
probability that none of them win the tournament=(4/5)(3/4)(2/3)
=2/5 |
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楼主 |
发表于 15-6-2011 05:53 AM
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回复 2# woeifang
我觉得这不是independence events， 而是mutually exclusive events，应改是
1-1/5-1/4-1/3=13/60 才对吧！因为只有一队会赢tournament ! |
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发表于 16-6-2011 11:17 AM
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发表于 2-12-2013 09:03 PM
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amteacher 发表于 15-6-2011 05:53 AM 
回复 2# woeifang
我觉得这不是independence events， 而是mutually exclusive events，应改是
none of them win the tournament <-- 个人看法，从问题需要的答案，是楼上woeifang的答案吧？>.<
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