The mean and standard deviation of height of a group of teenages are found to be 142 and 2.74 cm, while the same measures for their parents are 183 and 7.93 cm.

The Coefficient of variation of the teenages is: The Coefficient of Variation of their parents is: There is more variability on teenages parents

The Coefficient of variation of the teenages is:

The Coefficient of Variation of their parents is:

There is more variability on teenages parents