The arithmetic mean and coefficient of variation of data set x are respectively 10 and 30. The variance of 30 - 2x is
CA Foundation · Quantitative Aptitude · MTP · January 2026
The arithmetic mean and coefficient of variation of data set x are respectively 10 and 30. The variance of 30 - 2x is
Suggested Answer and Working Notes:
Correct Answer: Option (D)
D. 36
Topics: Part-A: Business Mathematics, Part-C: Statistics
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