This bar chart displays the average math score for each gender group from the StudentsPerformance dataset. The chart uses steelblue bars that turn orange on hover, with a y-axis labeled "Average Math Score" and an x-axis labeled "Gender." The visualization is built with d3.v7, using `d3.csv` to load the data, `d3.groups` to group by gender, `d3.mean` to calculate averages, and `d3.scaleBand` and `d3.scaleLinear` for the axes. SVG rendering is used, with bars appended as rectangles via `chart.selectAll('.bar').data(grouped).enter().append('rect')`.