2 In a survey 55 students were asked to record, to the nearest kilometre, the total number of kilometres they travelled to school in a particular week. The results are shown below.
| 5 | 5 | 9 | 10 | 13 | 13 | 13 | 15 | 15 | 15 | 15 |
| 16 | 18 | 18 | 18 | 19 | 19 | 20 | 20 | 20 | 20 | 21 |
| 21 | 21 | 21 | 23 | 25 | 25 | 27 | 27 | 29 | 30 | 33 |
| 35 | 38 | 39 | 40 | 42 | 45 | 48 | 50 | 50 | 51 | 51 |
| 52 | 55 | 57 | 57 | 60 | 61 | 64 | 65 | 66 | 69 | 70 |
- On the grid, draw a box-and-whisker plot to illustrate the data.
\includegraphics[max width=\textwidth, alt={}, center]{246c92f4-7603-43ff-8533-042a4be99a69-04_512_1596_900_262}
An 'outlier' is defined as any data value which is more than 1.5 times the interquartile range above the upper quartile, or more than 1.5 times the interquartile range below the lower quartile. - Show that there are no outliers.