This example summarizes a student dataset by displaying computed average scores for math, science, and English, along with the total row and column counts. A line chart rendered as SVG uses `d3.line` and `d3.scaleLinear` to plot the three subject score trends across all 100 students, with each subject shown in a distinct color. The data is loaded asynchronously from a CSV file via `d3.csv`, and the page styling uses the Quicksand and Pacifico fonts from Google Fonts with a sky-blue background.