Question

Read the bar graph which shows the number of books sold by a bookstore during five consecutive years and answer the following questions:
(i) About how many books were sold in 1989, 1990, 1992?
(ii) In which year were about 475 books and about 225 books sold?
(iii) In which year were fewer than 200 books sold?
(iv) Can you explain how you would estimate the number of books sold in 1989?

Answer 1

From the given bar graph, we have:
(i) The number of books sold in the year 1989 is about 180, in 1990 is about 490 and in 1992 is about 295.
(ii) About 475 books were sold in 1990. About 225 books were sold in the year 1992.
(iii) Fewer than 200 books were sold in the year 1989.
(iv) On y-axis, if the line is divided into 10 small parts of 10 books each, we can estimate the number of books sold in 1989 is about 180.