Professor Cairo Interviewed by Pew Research Center for article "The Art and Science of the Scatterplot"
In a recent survey of what Americans know about science, we asked people to interpret the chart you see here and tell us what it showed. Six-in-ten (63%) identify the best interpretation of this chart as “the more sugar people eat, the more likely they are to get cavities.”
This kind of chart — known as a scatterplot — is very familiar to people who are used to working with numbers, such as economists, scientists, researchers and data journalists. It is a good way to show a relationship between two variables.