how to find the coefficient of variation
How to Find a Coefficient of Variation: Overview. Use the following formula to calculate the CV by hand for a population or a sample. Ï is the standard deviation for a population, which is the same as âsâ for the sample. Î¼ is the mean for the population, which is the same as XBar in the sample. In other words, to find the coefficient of variation, divide the standard deviation by the mean and multiply by 100%.