The correct answer is:
A simple bar chart.
A simple bar chart is a chart consisting of one or more bars, in which the length of each bar indicates the magnitude of the corresponding data items. This is the best diagram to draw to highlight the differences of typical salaries in different areas.
We are not interested in showing the breakdown of the total salary, therefore a pie diagram and a percentage component bar chart are not really appropriate.
A multiple bar chart is a bar chart in which two or more separate bars are used to present sub-divisions of data. The data available relating to salaries is not subdivided and this type of chart is therefore not appropriate in this situation. |
