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    jbk2000 Posts: 6, Reputation: 1
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    #1

    May 10, 2010, 11:00 AM
    Normal distribution
    Hi can you please help me , I don't know how to do this question. Thanks.

    Q/

    If X and S^2 (where S^2 =1( ) 21nX Xnii) are the sample mean and sample variance of a
    random sample of n = 30 elements from a Normal population, N(9,100), find:

    (I) P(40< S^2 <150)
    jbk2000's Avatar
    jbk2000 Posts: 6, Reputation: 1
    New Member
     
    #2

    May 10, 2010, 11:04 AM
    Sorry il uptade it in a second, bare with me

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