For the variables x and y, the two regression lines are 6x+y=30and 3x+2y=25. What are the values of \overline{x},\overline{y} and r respectively? [NDA II 2019]

Correct Answer is : 359,203,−0.5

UPSC NDA 2 2019 Mathematics Solved Paper

Question : 106 of 120

Marks: +1, -0

For the variables x and y, the two regression lines are 6x+y=30and 3x+2y=25. What are the values of x,y and r respectively?

[NDA II 2019]

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