NCERT Example 7 - Statistics
Question: For classes 0-10, 10-20, ..., 50-60 with frequencies 6, 7, 15, 16, 4, 2, find mean deviation about the median.
Answer: Median = 28 and M.D. = 10.16 (approximately).
Full step-by-step NCERT solution with diagrams on Something by Zero.