This bar chart shows the relationship between students’ self-reported anxiety levels and their average grades, with anxiety ordered from “Very Low” to “Very High.” The visualization reveals how average grades shift across these five categories. Using D3 v7, the code loads a CSV from a GitHub gist, groups the data with `d3.rollup` to compute mean grades per anxiety level, and renders an SVG with `d3.scaleBand` and `d3.scaleLinear` axes. Bars change color on hover, and rotated x-axis labels improve readability.