What information does a pie chart include?

A pie chart is a circular statistical graphic, which is divided into slices to illustrate numerical proportions. In a pie chart, the arc length of each slice (and consequently its central angle and area), is proportional to the quantity it represents. While it is named for its resemblance to a pie cut into slices, there are variations on the way it can be presented.

The main components of a pie chart include:

1. Sector/Slices: Each section of the pie represents a category or division of data. The size of each sector corresponds to the proportion of the total represented by that particular category.

2. Percentages/ Proportions: Pie charts often display the percentage or proportion of each category as a label next to the corresponding sector. This allows viewers to easily compare the relative sizes of the different categories.

3. Title: A clear and concise title should be provided to indicate the subject or topic of the pie chart, giving context to the information presented.

4. Legend: A legend is usually included to identify the different categories represented by the sectors in the pie chart. Each category is assigned a different color or pattern, and the legend associates those colors or patterns with their respective categories.

5. Total Value: Sometimes, pie charts include a total value or sum of all the categories displayed in the chart. This can help provide context and allow for calculations based on the proportional values.