Solve this:
1. Given the following data , Find out quartile deviation and the coefficient of quartile deviation:
Wages (Rs) | 0-5 | 5-10 | 10-15 | 15-20 | 20-25 | 25-30 |
Number of Workers | 4 | 6 | 3 | 8 | 12 | 7 |
(Ans QD = 6.87, Coefficient of QD =0.4)