7 The weights in kilograms of two groups of 17-year-old males from country \(P\) and country \(Q\) are displayed in the following back-to-back stem-and-leaf diagram. In the third row of the diagram, ... \(4 | 7 | 1 \ldots\) denotes weights of 74 kg for a male in country \(P\) and 71 kg for a male in country \(Q\).
| Country \(P\) | | Country \(Q\) |
| 5 | 15 |
| 6 | 2348 |
| 98764 | 7 | 1345677889 |
| 886653 | 8 | 2367788 |
| 977655542 | 9 | 0224 |
| 54431 | 10 | 45 |
- Find the median and quartile weights for country \(Q\).
- You are given that the lower quartile, median and upper quartile for country \(P\) are 84,94 and 98 kg respectively. On a single diagram on graph paper, draw two box-and-whisker plots of the data.
- Make two comments on the weights of the two groups.