The pie chart shows information about the source of UK food in 2007.
Write down two criticisms of the diagram.

This pie chart has several features that make it a poor statistical diagram. Good criticisms would include: 1. **Too many categories:** A pie chart is effective for showing a few (usually less than 6-8) categories. This chart has a huge number of slices, many of which are too small to be seen clearly, let alone compared. The "Other" category also bundles over 100 countries, which hides a lot of information. 2. **Lack of labelling:** Most of the small slices are not labelled with their corresponding percentage. This makes it impossible to know their value, rendering that part of the chart useless for detailed analysis. 3. **Difficult to compare:** It is very hard for the human eye to accurately compare the sizes of the smaller, similar-looking slices. A bar chart would be much more effective for comparing the values of many different categories. 4. **Poor labelling scheme:** The labels are crowded and point to tiny slices, making the chart look cluttered and difficult to read.