This scatter plot visualizes the relationship between student study hours and exam marks, with a summary showing total students and averages. It uses D3 v7’s `d3.csv` to load data, `scaleLinear` for axes, and `d3.axisBottom`/`axisLeft` for the coordinate system. The React wrapper (index.jsx) renders an SVG, while the standalone HTML version draws semitransparent steelblue circles for each student. Data comes from a raw GitHub CSV file hosted by the author, and the chart includes axis labels for hours and marks.