question4
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This bubble chart visualizes the relationship between vehicle type and fatalities for road incidents, with each circle’s size and vertical position encoding the fatality count. The visualization uses a categorical x-axis for vehicle types and a linear y-axis for fatalities. Built with D3 v7, the chart loads CSV data and renders SVG circles with steelblue fill and 70% opacity. Interactive tooltips display additional incident details, including severity and damage extent, when users hover over individual bubbles.
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