This visualization compares average screen time, sleep hours, and GPA across six student groups using a combined bar and line chart. Gray bars represent average screen hours, while blue, green, and red lines depict trends for screen time, sleep, and GPA, respectively. The chart uses D3’s `scaleBand` for categorical x-axes, `scaleLinear` for the y-axis, and `d3.line` to connect summary points. Data is loaded from a CSV via `d3.csv`, grouped into six slices, and aggregated with `d3.mean` to compute group averages.