If r = 0.5, Cov(x,y) = 20, and σ x =8, then σ y is: Find Standard Deviation

CA Foundation · Quantitative Aptitude · MTP · September 2026
If r = 0.5, Cov(x,y) = 20, and σ x =8, then σ y is: Find Standard Deviation
(A) A. 4
(B) B. 5
(C) C. 6
(D) D. 8

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. 5

Topics: Part-C: Statistics

Open in Interactive Practice Hub · Full Practice Hub · Chapter Weightage · More in this subject

Related Questions in this Topic