Bubble Chart

A bubble chart is a scatterplot that shows relationships between three or four variables. The position of the bubble shows the relationship between the x and y variables.

• The bubble size is based upon a numerical variable, such as population, or sales.

• The bubble color is best reserved for categorical data, such as region.

• Bubble charts are best when the bubble sizes vary significantly.

Sosulski, Kristen. Data Visualization Made Simple (p. 51). Taylor and Francis. Kindle Edition.

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