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    desbab's Avatar
    desbab Posts: 2, Reputation: 1
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    #1

    Oct 17, 2010, 10:08 PM
    Probability help..
    If the average temperature in October is 59.3 degrees with a standard deviation of 2.6 degrees, what is the probability that the temperature will be over 75 degrees?
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #2

    Oct 18, 2010, 04:17 AM

    Use

    Look up the probability corresponding to the z score found above, then subtract from 1.
    desbab's Avatar
    desbab Posts: 2, Reputation: 1
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    #3

    Oct 18, 2010, 07:06 AM
    I did that, but on my z score chart, it only goes up to 3.9 and I got an annswer with a 6 for the z score
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #4

    Oct 18, 2010, 08:13 AM

    This only means that it is highly improbable, near impossible :)
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