Statistics
Coefficient of Variation
Premium Question
Grade 11
Question:
A data set has mean 20 and standard deviation 5. Its coefficient of variation, expressed as a percentage, equals _____.
Step-by-Step Solution
Key Concept: Use the formula $\text{C.V.} = \left(\frac{\text{S.D.}}{\text{Mean}}\right) \times 100$ and substitute the given values directly.
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Correct Answer: 25