Chapter 5: Data Handling

Exercise 5.1

1. For which of these would you use a histogram to show the data?
(a) The number of letters for different areas in a postman’s bag.
(b) The height of competitors in an athletics meet.
(c) The number of cassettes produced by 5 companies.
(d) The number of passengers boarding trains from 7:00 a.m. to 7:00 p.m. at a station. Give reasons for each.
Solution: (a) The number of letters for different areas in a postman’s bag . In this case , the data can not be divided into class interval .
(b) The height of competitors in an athletics meet . In this case , the data can be divided into class interval .
(c) The number of cassettes produced by 5 companies. In this case , the data can not be divided into class interval .
(d) The number of passengers boarding trains from 7:00 a.m. to 7:00 p.m. at a station. In this case , the data can be divided into class interval .