Question

find mean deviation from median if class interval =0-30,30-60,60-90,90-120,120-150,150-180,180-210 and frequency=5,10,20,30,20,10,5​

Answer 1

from median if class interval =0-30,30-60,60-90,90-120,120-150,150-180,180-210 and frequency=5,10,20,30,20,10,5