作者swd123 (快樂自在)
看板Statistics
標題[問題] 請問一題難題
時間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)=?
這題我想很久但是也不知道如何下手
希望有人可以幫忙解答
謝謝
感激不盡
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1F：推 davidlhs:畫圖! 06/16 00:38
2F：推 swd123:這樣說明我還是不清楚可以再說清楚一點嗎 06/16 23:39
3F：推 zeromagi:畫出看範圍 做雙重積分 06/17 10:12