Question

26. The following is the cummulative frequency distribution (of less than types of 1000
each of age 20 years and above Determine the mean age
30 40 50
70
Age below (in years)-
80
100 220 350
Number of persons
750 950 1000
​

Answer 1

Answer:

Age 20 Years and Above . Determine the Mean Age . ... Age below (in years):, 30, 40, 50, 60, 70, 80. Number of persons : 100, 220, 350, 750, 950, 1000 ...