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

    Feb 17, 2011, 11:20 PM
    regression line
    I'm suppose to compute the regression line for a set of raw data. My teacher only gave me the mean education level = 12, the mean of happiness = 9, the standard deviation of education = 3, and the standard deviation happiness = 2.5. I'm so confused on what to do.
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #2

    Feb 19, 2011, 06:55 AM

    It's difficult to find a regression line for raw data when there is no raw data. Maybe there is something I am not understanding, though. This is ALL the teacher gave?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Feb 20, 2011, 04:49 AM

    I got a formula in my stats book, but it requires and without this, I can't get the gradient of the line... This is the only thing I think is required besides the information already given.
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #4

    Feb 20, 2011, 05:06 AM

    I, too,looked that formula up again and noticed the same quandary. Regressions are usually done with calculators and what not, so these formulas kind of get forgotten. Doing a regression by hand is like working a square root by hand these days. Anyway, Unknown, I concur.
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