If the two lines of regression are \( x+4 y=3 \) and \( 3 x+ \)
P \...
If the two lines of regression are \( x+4 y=3 \) and \( 3 x+ \)
P \( y=15 \), then value of \( x \) for \( y=3 \)
W
(1) 4
(2) -9
(3) -4
(4) None of these
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