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标题: [求助]Have a question on three event probability [打印本页]

作者: yzsc888 时间: 2006-6-20 22:12
标题: [求助]Have a question on three event probability

6. 老jj~但我把題目明確一點:

說一個學校要進行考試，考English, mach 和writing. 通過考試的人可以不用修這門課
其中3％的人通過3門考試，又告訴了E和W考過的比例，E和M考過的比例，考M和W考過的比例，還告訴了考過E的比例，考過M的比例，考過W的比例，問三門課都要修的人有多少?

Can anyone kindly post a good explanation on how to solve this type question or give me old JJ link on this question

thanks in advance?

作者: yaoyao99 时间: 2006-6-20 22:23
http://forum.chasedream.com/dispbbs.asp?boardID=22&ID=177821&page=1

作者: yzsc888 时间: 2006-6-21 00:21
Thanks a lot

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