A scatter plot displays annual rainfall in Ecuador from 1940 to 1950, with each circle representing a year’s total precipitation in millimeters. The visualization uses D3 v7 to load CSV data from a GitHub gist, scale the x-axis as a band for years and the y-axis as a linear scale for precipitation values. SVG circles are positioned using the scale functions, while D3’s axis generators render labeled axes with custom CSS styling for points and typography.