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Math Help - Pedestrian crossing the road

  1. #1
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    Pedestrian crossing the road

    The probobility that a car travels along the road every second is p,
    independent of other time moments. A pedestrian needs three
    seconds to cross the road. What is the probability that a pedestrian
    approaching the road will wait for 3 second to travel the road.
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  2. #2
    MHF Contributor matheagle's Avatar
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    I heard this one b4, are you sure it wasn't a chicken?
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  3. #3
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    I'm pretty sure it is a pedestrian in my question!
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