What is meant by coefficient of variation? How will you calculate it in case of a discreate series?

What is meant by coefficient of variation? How will you calculate it i

1.	What is meant by coefficient of variation? How will you calculate it in case of a discreate series?
Answer» Solution :COEFFICIENT of variation is the PERCENTAGE variation in the mean, the standard deviation being considered as the TOTAL variation in the mean. CV = (`sigma`/`BARX`) X 100