A polling agency interviewed 200 persons. The age distribution of those persons was recorded as under Age 80-89 70-79 60-69 50-59 40-49 30-39 20-29 10-19 Years Frequency 2 2 6 20 56 40 42 32 Calculate mean age of the persons by Direct Method. Share with your friends Share 9 MD Kabeer answered this Dear student The mean age of the person is 35.8 years Regards 14 View Full Answer