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.
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.
In case of
the data given in alternative (b) and (d), we will use histogram as
we can divide the given data in class intervals. In case of
alternatives (a) and (c), we do not know about the number of letters
of different areas and the number of cassettes produced by the given
companies. We do not have any approximate idea about it. Therefore,
we cannot define class intervals for this data and thus, we will not
use a histogram.
In case of the data given in alternative (b) and (d), we will use histogram as we can divide the given data in class intervals. In case of alternatives (a) and (c), we do not know about the number of letters of different areas and the number of cassettes produced by the given companies. We do not have any approximate idea about it. Therefore, we cannot define class intervals for this data and thus, we will not use a histogram.
