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Cars on the road (Posted on 2004-04-09) Difficulty: 2 of 5
If the probability of observing a car (read: at least one car) in 20 minutes on a highway is 609/625, what is the probability of observing a car (read: at least one) in 5 minutes (assuming constant default probability)?

See The Solution Submitted by SilverKnight    
Rating: 2.5000 (4 votes)

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re(2): Auto-suggestion | Comment 5 of 22 |
(In reply to re: Auto-suggestion by Charlie)

Charlie,

Why must we fit a Poisson distribution?  (Not that we can't use it, but why MUST we use it, as opposed to a different distribution?)

  Posted by ThoughtProvoker on 2004-04-09 13:43:53

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