This dataset example introduces researchers to two-way scatter plots. Two-way scatter plots, often simply called scatter plots, allow researchers to explore graphically the relationship between two continuous variables. This example uses a subset of data from the World Bank’s World DataBank online tool. It looks specifically at the relationship between a country’s Gross Domestic Product per capita and its average life expectancy.
In this example, readers are introduced to how to produce and interpret two-way scatter plots. The sample dataset has been cleaned and organized to make this example easier to follow. Interested readers should read the full documentation for the dataset before using it for research (http://databank.worldbank.org/data/home.aspx), including the online tutorial explaining how to access country-level data (http://databank.worldbank.org/data/FAQ/Video/databank-tutorial-overview.html).