This scatterplot, titled “wealth & health of nations,” visualizes the relationship between income per capita and life expectancy across countries. Each circle represents a nation, positioned along a logarithmic x-axis for income and a linear y-axis for life expectancy. Hovering over a circle displays a tooltip with the country’s name. The chart includes labeled axes for "Income per capita" and "Life Expectancy," and the D3 v4 code uses an SVG and animation to render the data.