Economics (M.Phil./Ph.D.) 2017 Panjab University Entrance Exam With Answers

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30.

Let the two regression lines be given as 3x= 10+5y and 4y= 5+15x. Then the correlation coefficient between x and y is

A: -0.40
B: 0.40
C: 0.89
D: +1.05

The answer is: B

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