Get fund performance data on John Hancock Variable Insurance Trust Science & Technology Trust Series I (JESTX) including growth, trailing returns, and quarterly and monthly returns. Welcome!
Coefficient of variation is a measure of the ratio of the standard deviation to the mean. In statistics it is abbreviated as CV. To calculate CV you take the standard deviation of the data and divide it by the mean of the data. Mean is another word for average. To calculate the average of a set of data, you add all the numbers and then divide by how many numbers you added.
S CV = M Using our example of a standard deviation of 1.265 and a mean of 3, you will see that the coefficient of variation is rather large, indicating that the data has a great deal of variability with respect to the mean and there is not general consensus among the sample.