Pie Chart

A pie chart is a circular chart that displays the relative sizes of different categories of data. Each category is represented by a slice of the pie, with the size of the slice corresponding to the value of the data for that category. Pie charts are useful for showing the proportion of each category in a dataset and can be used to identify the largest or smallest categories.

To create a pie chart, you need to:

1. Determine the categories and values: Identify the categories you want to compare and the values for each category.
2. Calculate the percentage of each category: Calculate the percentage of the total value for each category.
3. Create the pie chart: Draw a circle and divide it into slices, with each slice representing a category.

When to use a pie chart

Pie charts are useful for:

• Showing the proportion of each category in a dataset
• Identifying the largest or smallest categories
• Comparing values between different categories

When do not use a pie chart

• Too many categories to display on a single chart
• Relationship between two variables
• Distribution of values in a dataset