Given: For a data set the coefficient of variation is 70% and standard deviation is 16 Here, we have to find the mean for the same data set. Let mean be x As we know, Coefficient of variation =
standard deviaiton
Mean
×100 ⇒ Coefficient of variation =
16
x
×100=70 ⇒x=
16
70
×100 ⇒x=22.85 (approximately) Hence, option D is the correct answer.