This scatterplot displays the relationship between average math and verbal SAT scores across all U.S. states in 2015. Each circle represents a state, with its position encoding test scores, its size encoding the number of test takers via a d3.scaleLinear, and its color encoding whether the state’s average math GPA is above or below 3.5 through a d3.scaleOrdinal. The visualization uses D3 v7 to render SVG elements, including axes, legends, and hover tooltips, with data loaded from a CSV file.