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LINEAR REGRASSION — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsLINEAR REGRASSION3 Marks
Question
$X$ and $Y$ are two mutually dependent variables. $ \sum_{1}^{20}(x-32)=0, \sum_{1}^{20}(y-48)=0, \Sigma(x-32)^{2}=120, \Sigma(y-48)^{2}= $ $260 ; \Sigma(x-32)(y-48)=-78$ obtain the regression line of $Y$ on $X$.
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Answer

$\overline{\hat{y}}=68.8-0.65 x$

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