Correlation and Regression

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Question : 154 of 156

Marks: +1, -0

Equations of two lines of regression are

4 x+3 y+7=0

and

3 x+4 y+8=0

, the mean of

x

and

{v}

are

$5 / 7$ and $6 / 7$
$-4 / 7$ and $-11 / 7$
$2$ and $4$
None of these

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