Bubble charts are similar to Scatter plots. They show data points as bubbles using Cartesian coordinates. In addition, bubble charts can display the size of the bubbles in proportions using a third metric. If you add an attribute to the View by section, the bubbles get different colours for each attribute value.
Bubble charts have the following sections: Metric (X-axis), Metric (Y-axis), Metric (Size), View by, and Configuration.
For information about common characteristics and settings of all insights, see Insight Types.