3 The test marks of 14 students are displayed in a stem-and-leaf diagram, as shown below.
\includegraphics[max width=\textwidth, alt={}, center]{e23cb28b-49e5-436a-942d-e6320029c634-2_234_261_1425_482}
Key: 1 | 6 means 16 marks
- Find the lower quartile.
- Given that the median is 32 , find the values of \(w\) and \(x\).
- Find the possible values of the upper quartile.
- State one advantage of a stem-and-leaf diagram over a box-and-whisker plot.
- State one advantage of a box-and-whisker plot over a stem-and-leaf diagram.