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Nov 2021 p53 q2
2382
Lakeview and Riverside are two schools. The pupils at both schools took part in a competition to see how far they could throw a ball. The distances thrown, to the nearest metre, by 11 pupils from each school are shown in the following table.
| Lakeview | 10 | 14 | 19 | 22 | 26 | 27 | 28 | 30 | 32 | 33 | 41 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Riverside | 23 | 36 | 21 | 18 | 37 | 25 | 18 | 20 | 24 | 30 | 25 |
- Draw a back-to-back stem-and-leaf diagram to represent this information, with Lakeview on the left-hand side.
- Find the interquartile range of the distances thrown by the 11 pupils at Lakeview school.
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