This example visualizes the distribution of athlete weights and heights from a CSV dataset, using colored bins to compare counts across sexes. It loads the data with `d3.csv`, processes weight, height, and sex fields, then renders a histogram with `Plot.rectY` and `Plot.binX` from the Observable Plot library. The chart is embedded into an HTML `<pre>` element, with D3 v6 providing data parsing and Plot handling the visualization.