Which type of chart accommodates multiple data sets on the same graph?

A polygon chart is particularly effective for displaying multiple data sets on the same graph because it allows for the visualization of changes in data across different intervals or categories. Each polygon can represent a separate data set, facilitating direct comparison between them. This chart type connects points that represent data at specific intervals, making it easy to observe trends and patterns over time or across categories.

In contrast, bar charts typically display single data sets for comparative purposes but can be less effective when attempting to show multiple sets simultaneously unless they are stacked or grouped. Scatter plots primarily focus on the relationship between two variables and do not inherently support multiple data sets in the same sense as a polygon chart. Pie charts are designed to show parts of a whole, which makes it difficult to effectively represent more than one data series. Thus, the polygon chart stands out as the most suitable option for accommodating multiple data sets.