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    DyNaFeN's Avatar
    DyNaFeN Posts: 7, Reputation: 1
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    #1

    Mar 14, 2010, 05:49 PM
    1 probability question i couldn't solve please help..
    7) The length of glass plates are measured to the nearest tenth of mm. The lengths are uniformly distributed between 590.0 and 590.9
    i. If we select a sample of 10 plates, what is the probability that less than 4 of them have length under 590.3?
    ii. If we select a sample of 10 plates, what is the probability that 9 of them have length greater than the mean length?
    iii. If we select 10 plates, what is the probability that only two have length greater than 590.6?

    thanks in advance
    morgaine300's Avatar
    morgaine300 Posts: 6,561, Reputation: 276
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    #2

    Mar 14, 2010, 10:34 PM

    Is this still your exam?
    DyNaFeN's Avatar
    DyNaFeN Posts: 7, Reputation: 1
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    #3

    Mar 14, 2010, 11:59 PM

    no .
    I was solving random problems and I solved all except for this one..
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