If the regression line of y on x and of x on y are given by 2x + 3y = −1 and 5x + 6y = -1 then the arithmetic means of x and y are given by

CA Foundation · Quantitative Aptitude · MTP · September 2024
If the regression line of y on x and of x on y are given by 2x + 3y = −1 and 5x + 6y = -1 then the arithmetic means of x and y are given by
(A) A. (1,-1)
(B) B. (-1, 1)
(C) C. (-1,-1)
(D) D. (2,3)

Suggested Answer and Working Notes:

Correct Answer: Option (A)

A. (1,-1)

Topics: Part-C: Statistics

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