This example shows the relationship between hours studied and exam scores using an area chart, with a light blue filled region and steel blue outline. It loads student performance data from a GitHub-hosted CSV file and parses the numeric columns. The visualization uses D3 v6 to create linear scales for both axes, an `area` generator for the filled path, and `axisBottom` and `axisLeft` for the axes. Labels are added for both dimensions, and the SVG is rendered directly into the page.