CFA Practice Question

CFA Practice Question

A large group of inductees was given a mechanical aptitude and finger dexterity test. The mean score on the mechanical aptitude test was 200, with a standard deviation of 10. The mean and standard deviation for the finger dexterity test were 30 and 6 respectively. What is the relative dispersion in the two groups?
A. Mechanical aptitude: 20 percent; finger dexterity: 10 percent
B. Mechanical aptitude: 50 percent; finger dexterity: 200 percent
C. Mechanical aptitude: 5 percent; finger dexterity: 20 percent
Explanation: The respective CVs (coefficients of variation) are found from σ/μ. Mechanical aptitude: 10/200 = 5% and finger dexterity: 6/30 = 20%.

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