作者dounts (忘記過去)
看板Statistics
標題[問題] possion 的平均值問題?
時間Wed Aug 6 00:03:16 2008
The number of eggs laid by some aquarium fish has a Poisson
distribution with parameter λ. Each egg survives independently of
anything else with probability p. Given that the number of survived
eggs is S find the expected number of eggs produced by the fish.
Can you give an intuitive explanation of your result?
這是我們老師出的題目 實在沒什麼 idea
有人可以解出來嗎 謝謝......
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 64.131.239.102
※ 編輯: dounts 來自: 64.131.239.102 (08/06 00:05)
→ clickhere:p*S is the expected number of eggs 08/06 03:17
→ clickhere:Conditional independent. 08/06 03:18