The coefficient of variation is expressed in:a.Percentageb.Decimalc.Ratiod.Integer

Final Answer

The coefficient of variation is expressed in: a. Percentage.

Explanation

The coefficient of variation (CV) is a statistical measure of the relative variability of data. It is calculated as the ratio of the standard deviation to the mean of the dataset, often multiplied by 100 to convert it into a percentage. This is useful because it allows for comparisons between datasets with different units or widely different means, as it standardizes the measure of dispersion. A higher CV indicates greater relative variability, while a lower CV indicates more stability in the data. Therefore, the most common expression for the coefficient of variation is as a percentage, making option a the correct choice.