Question

A museum is a place where old relics are kept for public display. A visit to the museum imparts us knowledge about the history, civilization, culture, lifestyle, architecture and art of the country. A group of 71 people visited the National Museum in Delhi on a certain day. The following table shows their ages:

For the following distribution | Marks below | Number of Students | |-------------|--------------------| | 10 | 1 | | 20 | 5 | | 30 | 13 | | 40 | 15 | | 50 | 16 | the modal class is :

Compute the median for the following cumulative frequency distribution:

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 patients | 60 | 42 | 55 | 70 | 53 | 20 | Form: (i) Less than type cumulative frequency distribution. (ii) More than type cumulative frequency distribution.