mehrachandan671 mehrachandan671 04-05-2024 Math Answered Explain Mean Deviation and its usefulness in statistics. Calculate the Median and Mean Deviation of the following set of data points: Size 0- 10- 20- 30- 40- 50- 60- 10 20 30 40 50 60 70 Frequency 7 12 18 25 16 14 8