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redditseddit4u t1_j8h50de wrote

What does the bubble size represent? If it’s per capita income isn’t that redundant with the x axis?

Also, it’d be interesting to see this chart with road deaths per x miles driven. People in USA for example drive far more miles per capita and would therefore have more deaths per capita, all else being equal.

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ismaelsow OP t1_j8hf6i5 wrote

Yes the bubble size represents per capita income. I made that choice because I felt it strengthened the visual value of the correlation. But I can understand the argument for using pop size instead.

Indeed, having miles driven would be interesting, or maybe total length of the road network which might easier to find.

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