This scatter plot shows the relationship between daily study hours and grade change for students, comparing those who use AI against those who do not. The D3.js v7 code loads CSV data via `d3.csv`, filters incomplete records, and renders SVG circles colored by AI usage with an ordinal scale. Interactive tooltips appear on mouseover, while axes and a legend are generated using `d3.axisBottom`, `d3.axisLeft`, and scale functions for linear positioning.