1. The best type of graph to show ranking is a bar graph.
2. In both the Eastern and Northern Zones, Curative Care Vist was the most frequent.
3. In the Eastern Zone, Inpatient Medical and Inpatient Obstetrics are equally the least frequent. In the Northern Zone, Speech Therapy is the least frequent.
4. While Curative Care Visits are the most frequent in both the Eastern and Northern Zones, the least frequent claim differs between the two zones, as shown in my answer to Question 3.