The variance of two variables 'x' and 'y' are 16 and 25 and covariance between 'x' and 'y' is 18.5. Another two variables 'u' and 'v' are defined as…

CA Foundation · Quantitative Aptitude · PYQS · September 2024
The variance of two variables 'x' and 'y' are 16 and 25 and covariance between 'x' and 'y' is 18.5. Another two variables 'u' and 'v' are defined as u = (x - 3)/2 and v = (y-2)/3, then coefficient of correlation between 'u' and 'v' is:
(A) A. 0.875
(B) B. 0.85
(C) C. 0.90
(D) D. 0.925

Suggested Answer and Working Notes:

Correct Answer: Option (D)

D. 0.925

Topics: Part-C: Statistics

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