1. 9d. Pie Charts CSCI N207 Data Analysis Using Spreadsheet Department of Computer and Information Science, IUPUI Lingma Acheson linglu@iupui.edu

2. Pie Charts Univariate analysis (one data variable, good for comparing percentages among categories) Data represented as an area in a circle expressed as a percentage of a whole. Larger pie piece represents a larger percentage. Number of categories should be kept to a minimum (<10). “Other” category should represent a small percentage (if used). Total percentage should add up to 100 to close to 100 (due to round ups) Sometimes need to process data to come up with percentages

3. Examples

4. Practice Find out the percentage of coffee orders from all the customers.