The frequency chart shows the store's sales of the shirt for the week: 9 large shirts, 11 medium shirts, and 6 small shirts.

                         Number of Each Shirt Size Sold                        1

                Frequency

                11 +                   *****
                   |                   *****
                   |                   *****
                   |                   *****
                10 +                   *****
                   |                   *****
                   |                   *****
                   |                   *****
                 9 +       *****       *****
                   |       *****       *****
                   |       *****       *****
                   |       *****       *****
                 8 +       *****       *****
                   |       *****       *****
                   |       *****       *****
                   |       *****       *****
                 7 +       *****       *****
                   |       *****       *****
                   |       *****       *****
                   |       *****       *****
                 6 +       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                 5 +       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                 4 +       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                 3 +       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                 2 +       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                 1 +       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                   |       *****       *****       *****
                   --------------------------------------------
                           large      medium       small

                                       Size