The table given below shows the age distribution of 1000 persons who v

The table given below shows the age distribution of 1000 persons who visited a marketing centre on a Sunday. Age (in years) 0 − 10 10 − 20 20 − 30 30 − 40 40 − 50 50 – 60 60 – 70 Number of persons 105 222 220 138 102 113 100 Find the mean age of the persons visiting the marketing centre on that day.

Answer» The table given below shows the age distribution of 1000 persons who visited a marketing centre on a Sunday.

Age (in years)	0 − 10	10 − 20	20 − 30	30 − 40	40 − 50	50 – 60	60 – 70
Number of persons	105	222	220	138	102	113	100

Find the mean age of the persons visiting the marketing centre on that day.