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.
In statistics, the coefficient of determination R2 is the proportion of variability in a data set that is accounted for by a statistical model. In this definition, the term variability is defined as the sum of squares. There are equivalent expressions for R2 based on an analysis of variance decomposition.