Two random variables have regression lines \( 3 x+2 y-26=0 \) and \( 6 x+y-31=0 \). Calculate: t...

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Two random variables have regression lines \( 3 x+2 y-26=0 \) and \( 6 x+y-31=0 \). Calculate: the mean values of \( x \) and \( y \)
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