4 The heights, in cm, of the 11 players in each of two teams, the Aces and the Jets, are shown in the following table.
| Aces | 180 | 174 | 169 | 182 | 181 | 166 | 173 | 182 | 168 | 171 | 164 |
| Jets | 175 | 174 | 188 | 168 | 166 | 174 | 181 | 181 | 170 | 188 | 190 |
- Draw a back-to-back stem-and-leaf diagram to represent this information with the Aces on the left-hand side of the diagram.
- Find the median and the interquartile range of the heights of the players in the Aces.
- Give one comment comparing the spread of the heights of the Aces with the spread of the heights of the Jets.