Random variables X and Y are mutually dependent variables. Follow… - Vidyadip

Question

Random variables $X$ and $Y$ are mutually dependent variables. Following results are obtained from $10$ observations of these variables: $\Sigma x=780 ; \Sigma y=1300 ; \Sigma(x-78)^{2}=1256 ; \Sigma(y-130)^{2}=3140, \Sigma(x-$ $78)(y-130)=-1884 .$ from this data find the intercept of the regression line of $Y$ on $x$.

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Answer

$a=247$

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