The following are some particulars of the distribution of weights of boys and girls in a class:
Which of the distributions is more variable?
Here SD(Boys) is 3 and SD (girls) = 2
Coefficient variability = 
Coefficient variance (Boys) =
Cv (Boys) = 5
Coefficient variance (Girls) =
Cv (Girls) = 4.4
Hence, Cv Boys is greater than Cv girls,then the distribution of weights of boys is more variable than that of girls
6