18. Given the regression equations as 3x + y = 13 and 2x + 5y = 20, which one is the regression
equation of y on x?
(a) 1st equation (b) 2nd equation (c) both (a) and (b) (d)
none of these.
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Step-by-step explanation:
and answer is option (b) u need reason, see above picture
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