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For the following grouped data, what is the coefficient of variation? Class intervals: 0–10, 10–20, 20–30, 30–40, 40–50 Frequencies: 2, 10, 8, 4, 6
- 50
- 51.9
- 48
- 51.8
Correct answer: 51.9
Solution
The coefficient of variation is calculated by dividing the standard deviation by the mean and then multiplying by 100. In this case, the calculations yield a coefficient of variation of approximately 51.9, indicating the relative variability of the data compared to the mean.
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