Estimate quartile deviation and the coefficient of quartile deviation of the following data: 8,9,11,12,13,17,20,21,23,25,27 Show that QD is the average of the difference between two quartiles.

Estimate quartile deviation and the coefficient of quartile deviation

1.	Estimate quartile deviation and the coefficient of quartile deviation of the following data: 8,9,11,12,13,17,20,21,23,25,27 Show that QD is the average of the difference between two quartiles.
Answer» ANSWER :QD=6,COEFFICIENT of QD=0.353