This article describes how to go from a displaying individual categories and percentages for a categorical variable set:
To a displaying an average for each variable:
A categorical Nominal - Multi variable set which contains meaningful underlying numeric values. For example, a 1-10 scale likelihood to recommend question for multiple brands.
1. Create a table from your variable set by dragging it from the Data Sets tree onto the page.
2. Select the variable set in the Data Sets tree.
3. From the toolbar menu, select Anything > Data > Variables > Modify > Restructure > Averages.