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    sampsonrn's Avatar
    sampsonrn Posts: 1, Reputation: 1
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    #1

    Oct 20, 2009, 07:51 AM
    probability of 911 calls
    what is the probability of 4 or more calls to 911 with a poisson distribution with a mean of 11
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
     
    #2

    Oct 20, 2009, 08:24 AM

    More details and may help get you some answers.
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #3

    Oct 20, 2009, 11:06 AM
    Find the probability of less than 4 and subtract from 1.





    Let x=0, 1, 2, 3, add them up, and subtract from 1.

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