[转载] Re: 做题了做题了！！！# CS - 计算机科学
b*y
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【 以下文字转载自 EE 讨论区 】
【 原文由 bjyyj 所发表 】
the pdf of the time interval between two buses is exponential
f(t)=exp(-t/15)/15
the avg number of passengers who arrives between time interval t is 2t
the avg number per bus:
\int_0^{\infty}2t\cdot f(t) dt
answer of b should be the same as
【 原文由 bjyyj 所发表 】
the pdf of the time interval between two buses is exponential
f(t)=exp(-t/15)/15
the avg number of passengers who arrives between time interval t is 2t
the avg number per bus:
\int_0^{\infty}2t\cdot f(t) dt
answer of b should be the same as