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Fork of Fork of Fork of Fork of Fork of React & D3 Starter LINE cHART

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Mmichael_chuxs@yahoo.com
Last edited May 29, 2026
Created on May 29, 2026

This line chart compares average student grades before and after AI usage across age groups, using two colored lines with circular markers for each data point. Hovering over a marker displays a tooltip with the exact age and grade value. The visualization loads CSV data from a GitHub repository, processes it with `d3.rollups` and `d3.mean` to aggregate averages per age, and renders the chart as SVG using `d3.line`, `d3.scaleLinear`, and `d3.axisBottom`/`d3.axisLeft`. A custom legend distinguishes the two grade series.

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