For the following frequency table, find out the number of persons whose age is between 50 years and 70 years.
| Age (years) | 40 - 45 | 45 - 50 | 50 - 55 | 55 - 60 | 60 - 65 | 65 - 70 |
| Number of persons | 10 | 20 | 30 | 30 | 15 | 5 |
1
20
2
80
3
70
4
60
For the following frequency table, find out the number of persons whose age is between 50 years and 70 years.
| Age (years) | 40 - 45 | 45 - 50 | 50 - 55 | 55 - 60 | 60 - 65 | 65 - 70 |
| Number of persons | 10 | 20 | 30 | 30 | 15 | 5 |