This scatter plot visualizes exam scores for 20 students, plotting math scores on the x-axis against English scores on the y-axis. Each dot is color-coded according to performance category—Excellent, Good, or Satisfactory—based on the student’s average score. The visualization uses D3.js v7 to create an SVG chart with linear scales, axes, and a legend. The code defines scales with d3.scaleLinear and applies a color scale with d3.scaleOrdinal and d3.schemeCategory10, rendering the data points as circles.