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    ttt1293's Avatar
    ttt1293 Posts: 5, Reputation: 2
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    #1

    Mar 13, 2010, 03:14 PM
    For a normal curve with mean 8 and standard deviation 7, which of the following parts
    For a normal curve with mean 8 and standard deviation 7, which of the following parts of the normal curve will have an area of approximately 68% of the total area?
    a) from 4.5 to 11.5
    b) from 1 to 15
    c) from 8 to 22
    d) from -2 to 14
    morgaine300's Avatar
    morgaine300 Posts: 6,561, Reputation: 276
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    #2

    Mar 13, 2010, 03:22 PM

    Look up your Empirical Rule. How many standard deviations are 68%? This shouldn't be too hard to figure out. Give it a shot.
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    ttt1293 Posts: 5, Reputation: 2
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    #3

    Mar 13, 2010, 07:41 PM
    b) from 1 to 15
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    ttt1293 Posts: 5, Reputation: 2
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    #4

    Mar 13, 2010, 07:42 PM
    Quote Originally Posted by morgaine300 View Post
    Look up your Empirical Rule. How many standard deviations are 68%? This shouldn't be too hard to figure out. Give it a shot.
    Thanks!
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