For two variables x and y, the two regression coefficients are b_{y x}=-3 / 2 and b_{x y}=-1 / 6. The correlation coefficient between x and y is :n x and y is : [NDA I 2014]

UPSC NDA I 2014 Mathematics Paper

Question : 12 of 120

Marks: +1, -0

For two variables x and y, the two regression coefficients are byx=−

and bxy=−

. The correlation coefficient between x and y is :n x and y is :

[NDA I 2014]

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