This scatter plot shows the relationship between average class size and college attendance rates for Massachusetts public schools, with each point colored by the percentage of economically disadvantaged students at that school. The visualization uses D3.js v7 with an SVG rendering approach, employing `d3.scaleLinear` for both axes, `d3.scaleSequential` with the Plasma interpolator for the color scale, and `d3.axisBottom`/`d3.axisLeft` for the chart axes. Data is loaded from a CSV file using `d3.csv`, with a tooltip providing detailed information for each school on hover.