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Math Help - quadratic regression

  1. #1
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    quadratic regression

    ok guys I need help, I have to present a presentation about this subject, I understand the linear regression line, such that sum of the risiduals is equal to 0, but I have no idea when students or I can use the quadratic regression, any examples?
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  2. #2
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    Quote Originally Posted by mancillaj3 View Post
    ok guys I need help, I have to present a presentation about this subject, I understand the linear regression line, such that sum of the risiduals is equal to 0, but I have no idea when students or I can use the quadratic regression, any examples?
    Try quadratic regression when the scatter plot of your data looks parabolic.
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