7 The heights, in cm, of the 11 basketball players in each of two clubs, the Amazons and the Giants, are shown below.
| Amazons | 205 | 198 | 181 | 182 | 190 | 215 | 201 | 178 | 202 | 196 | 184 |
| Giants | 175 | 182 | 184 | 187 | 189 | 192 | 193 | 195 | 195 | 195 | 204 |
- State an advantage of using a stem-and-leaf diagram compared to a box-and-whisker plot to illustrate this information.
- Represent the data by drawing a back-to-back stem-and-leaf diagram with Amazons on the left-hand side of the diagram.
- Find the interquartile range of the heights of the players in the Amazons.
Four new players join the Amazons. The mean height of the 15 players in the Amazons in now 191.2 cm . The heights of three of the new players are \(180 \mathrm {~cm} , 185 \mathrm {~cm}\) and 190 cm . - Find the height of the fourth new player.
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