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Math Help - Normal Distribution Probability

  1. #1
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    Normal Distribution Probability

    Not really sure how to get the answer on this one. Any help would be much appreciated. Tried to use the poisson formula but my calculator said "overflow error"


    A passenger sailing on a cruise ship has a 0.003 chance to contract food poisoning. If a cruise ship carries 3000 passengers, the probability that more than 10 passengers contract food poisoning is
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  2. #2
    Member HappyJoe's Avatar
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    Using the Poisson formula sounds like a good idea.

    Do you also get an overflow error if you calculate the probability of the opposite event that less than or equal to 10 passengers contract food poisoning? That should be managable for most reasonable calculators. You can then subtract this probability from 1 to get the desired answer.
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