作者swd123 (快乐自在)
看板Statistics
标题[问题] 请问一题难题
时间Fri Jun 16 00:29:33 2006
Q：Let X and Y be random times for a company to complete two steps in a
certain process. Say X and Y are measured in days and they have the joint
p.d.f. that is uniform over the space 1<x<10, and 2<y<6, and x+2y<14.
What is the P(X+Y>10)=?
这题我想很久但是也不知道如何下手
希望有人可以帮忙解答
谢谢
感激不尽
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1F：推 davidlhs:画图! 06/16 00:38
2F：推 swd123:这样说明我还是不清楚可以再说清楚一点吗 06/16 23:39
3F：推 zeromagi:画出看范围 做双重积分 06/17 10:12