作者Jamire (^^)
看板Statistics
标题[问题] 98台大商研统计问题
时间Tue Jan 3 22:53:33 2012
想问一题混和分配问题
题目是 Suppose that number of minutes between successive arrivals of the
Taipei MRT train at a station is uniformly distributed on (0,1). passengers
arrive according to a poisson process with a rate λ. Suppose a train has
just left the station. Let X denote the number of people who get on the next
train. find E(X)
答案是说t~U(0,1) 则X|t~poi(λt) 之後略
最常算二项跟poi的混和问题
但这题X|t~poi(λt)我搞不懂怎麽来的
请问高手如何解?或该翻那些资料加强观念?谢谢
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