If two variables x and y are related by 2x + 3y - 7 = 0 and the mean and mean deviation about mean of x are 1 and 0.3 respectively, then the…

CA Foundation · Quantitative Aptitude · MTP · January 2026
If two variables x and y are related by 2x + 3y - 7 = 0 and the mean and mean deviation about mean of x are 1 and 0.3 respectively, then the coefficient of mean deviation of y about its mean is
(A) A. -5
(B) B. 12
(C) C. 50
(D) D. 4

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. 12

Topics: Part-C: Statistics

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