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Mean 50 with SD 5, versus mean 20 with SD 4: which has more relative variation?
ASecond, CV 20 percent
BFirst, CV 10 percent
CBoth are equal
DNeither can compare
Answer & Solution
Correct answer: A. Second, CV 20 percent
Coefficient of variation is SD/mean x 100, giving 10% for the first and 20% for the second.
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