NCERT Exercise 13.1 - Q1 / Examples - Statistics
Question: Find the mean of the following grouped frequency distribution: (Class intervals: 0-10, 10-20, 20-30, 30-40, 40-50; Frequencies: 5, 8, 15, 16, 6).
Answer: The mean of the grouped distribution is 27.2.
Full step-by-step NCERT solution with diagrams on Something by Zero.