Worked example 4 Calum measured the heights (in cm) of the school senior basketball team. His results were as follows: Girls: 171 176 176 177 179 162 172 160 157 155 Boys: 168 167 165 185 184 173 177 167 169 177 (i) Represent the data on a back-to-back stem and leaf plot. (ii) Use the stem and leaf plot to compare the height of the boys and girls.