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  • Tammy LaBiche-Henley thinks this is interesting:

For example, let’s say that we manage a bus fleet and want to understand the relationship between miles driven and cost per mile. The scatterplot may look something like Figure 2.6.

From

Cover of Storytelling with Data: A Data Visualization Guide for Business Professionals

Note

Scatterplots show relationships between two things like miles driven and cost per mile with Average line to show above and below average