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If the relationship between the two

variables x and y is given by 2x + 3y +

4 = Othen the value of correlation

coef

Question

If the relationship between the two

variables x and y is given by 2x + 3y +

4 = Othen the value of correlation

coefficient between x and y is

0

-1

negative

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Mathematics
4 months
2021-07-18T22:46:52+00:00
2021-07-18T22:46:52+00:00 1 Answers
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## Answers ( )

Answer:y = -2/3 x – 4/3 .. (1) which is regression equation of y on x and

x = -3/2 y -2 …(2) which is regression of x on y. From (1), regression coefficient of y on x i.e. b (yx) = -2/3 & from (2) regression coefficient of x on y i.e. b (xy) = -3/2

We know, b(yx) * b (xy) = r^2 where r is the correlation coefficient of x & y. Hence r^2 = 1 Or, r = +/ – 1