Page 7 - Averages
P. 7

The mode


               1  Find the mode for each set of data.

                    a  3, 1, 2, 5, 6, 4, 1, 5, 1, 3, 6, 1, 4, 2, 3, 2, 4, 2, 4, 2, 6, 5

                    b  17, 11, 12, 15, 11, 13, 18, 14, 17, 15, 13, 15, 16, 14


               2  Find the modal category for each set of data.

                    a  I, A, E, U, A, O, A, E, U, A, I, A, E, I, E, O, E, I, E, O


                    b  CNN, SKY, BBC, ABC, BBC, SKY, BBC, ABC, CNN, SKY, BBC, SKY, CNN

                    c  ♥, ♣, ♦, ♣, ♠, ♥, ♣, ♦, ♣, ♦, ♥, ♠


               3  Farmer Giles kept a record of
                    the number of eggs his hens
                    laid. His data is shown on the
                    bar chart.
                    a  How many hens did Farmer
                        Giles have?
                    b  What is the mode of the
                        number of eggs laid?
                    c  How many eggs were laid
                        altogether?



               4  This table shows favourite pets for
                    students in form Y10E.                         Dog  Cat  Rabbit  Guinea pig  Other
                    a  How many students are in the         Boys  8       1    3         2            0
                        form Y10E?
                                                            Girls  3      3    7         3            1
                    b  What is the modal pet for:
                    i   boys          ii  girls        iii  the whole form?


                    c  After two new students join the form, the modal pet for the form changes and its
                    value becomes 12 .
                    Which of the following statements are true?
                    1   Both students like cats.

                    2  Both students like rabbits.
                    3   One student likes rabbits; the other likes cats.
                    4   You cannot tell what pets they like.


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