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Bubble chart

Excel bubble chart type

The Bubble Chart is a built-in chart type in Excel. Bubble charts are a special kind of XY chart that can display another data series which is used to scale the bubble (marker) plotted at X and Y values. You can think of a bubble chart as "X versus Y, scaled by Z". Like a regular XY scatter chart, both axes are used to plot values – there is no category axis.

Pros

  • Can show the relationship of one variable to another
  • Unique ability to show data about a third dimension 
  • Can visually display correlation

Cons

  • Unusual chart type may be difficult to ready for many people
  • More difficult to set up than other chart types