This chart displays the distribution of average Math SAT scores across all US states in 2015, using a single horizontal boxplot. It shows the minimum, first quartile, median, third quartile, and maximum values along a linear scale. The visualization is built with D3 v7, using SVG elements like `line` and `rect` to construct the plot, with `d3.csv` loading the remote dataset and `d3.quantile` computing the summary statistics. Hovering highlights the box, and a tooltip text is appended via a `title` element.