Regression PowerPoint PPT Presentation

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Title: Regression


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26-Nov-09
Regression
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The equation is approximately y 1.5x 0.5
y
6
4
x
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y bx a b Sxy Sxx a (mean of y) b x
(mean of x)
Sxx Sx2 (Sx)2 n Syy Sy2 (Sy)2
n Sxy Sxy (SxSy) n
y 1.46x 0.25
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