The following are the ages of 300 patients getting medical treatment in a hospital on a particular day :
Age (in years) |
10-20 |
20-30 |
30-40 |
40-50 |
50-60 |
60-70 |
Number of students |
60 |
42 |
55 |
70 |
53 |
20 |
Form the "less than type" cumulative frequency distribution table.