b***k
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yuany (掌门) 于 (Thu Jul 9 10:00:53 2009, 美东) 提到:
the mouse need t second to cross the street.
on average, there is one car come through every T second.
what is the prob mouse will survive crossing the street.
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indigoindigo (大白) 于 (Thu Jul 9 11:32:07 2009, 美东) 提到:
event does not happen in t seonds, event follows poisson distribution.
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soze (soze) 于 (Thu Jul 9 11:48: |
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