If the mean of a certain set of data is 16 and variance is 4, then find the coefficient of variance.
12.5
The coefficient of variance (CV) is calculated using the formula: CV = (Standard deviation / Mean) * 100 Here, Standard deviation = √Variance = √4 = 2, and Mean = 16. Thus, CV = (2 / 16) * 100 = 12.5. Therefore, option 2, "12.5," is the correct answer.
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