Page 70 - Mathematics Coursebook
P. 70

6.3 Using frequency tables



               )     Exercise 6.3


               1   Twenty students were asked to choose their favourite colour out of red (R), blue (B), green (G),
                  yellow (Y), pink (P) or other (O). The results are below.

                   R         G        G         B         Y        G         R         G        R         Y
                   B         O        O         R         B        Y         R         R        O         P

                  a  Copy and complete the data-collection sheet to show this information.

                                           Red (R)     Blue (B)   Green (G)    Yellow (Y)   Pink (P)   Other (O)
                      Favourite colour


                  b  Which colour was the most popular?

               2  The students in one class were divided into three groups, A, B and C.
                 There were 10 students in each group.
                 Each member of the group had to answer as many maths questions as they could in 10 seconds.
                 Here are the numbers of questions that each student answered correctly.
                 Group A: 2, 1, 3, 2, 2, 1, 2, 2, 3, 4                                       Group
                 Group B: 2, 2, 3, 4, 0, 1, 0, 1, 2, 4
                 Group C: 4, 0, 2, 3, 2, 1, 1, 1, 1, 0                             A           B           C
                                                                         0
                 Copy and complete the data-collection
                 sheet to show the information above.                    1         /

                 The scores for the first six students from     Score     2        ////
                 group A have been done for you.                         3         /
                                                                         4
               3   Thirty students were asked to choose their
                  favourite subject out of maths (M), science
                  (S), art (A), history (H) or other (O). The results are below.
                   S         S         A        S        M         M         S        H         M         H
                   M         A        M         O         H        M         M         S        S         M
                   H         H        M         H         S         S        M        M         M         O

                  a  Copy and complete the frequency table to show this information.

                          Subject             Tally           Frequency

                   Maths (M)
                   Science (S)

                   Art (A)
                   History (H)

                   Other (O)
                                                   Total:

                  b  What was the most popular subject?



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