Page 11 - Bar Graphs
P. 11

7.5  Information in bar graphs

                  Jabu wants even more information.
                    He says: “I know now that three quarters of the small fish she
                  wants to sell are Syubunkins. And I know the Syubunkins are
                  about one quarter of all the fish she wants to sell. I also want to
                  know how many of the Hunas and Hibunas are small.”

                    Jabu asked the seller for bar graphs. This is what she sent:


                     types of medium length fish                types of large fish
                           (7 cm to 9 cm)                       (10 cm to 12 cm)
                     9                                 14
                     8                                 12
                     7
                   number of fish  6                  number of fish  8
                                                       10
                     5
                     4
                                                         6
                     3
                     2
                                                         2
                     1                                   4
                     0                                   0
                          huna       hibuna     syubunkin     huna           hibuna          syubunkin
                            Kinds of goldfish                      Kinds of goldfish


                  Read the graphs to answer the questions. Look carefully at the
                  number lines.


                  1. How many Hibunas are medium length fish?

                  2. How many Hunas are large fish?
                  3. Compare the number of Hibunas that are medium and large.

                  4. Compare the number of Syubunkins that are medium and
                      large.

                  5. Work out how many Hunas and Hibunas are small. Use the
                      information in all the previous bar graphs and pie charts.









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