task8.4
This interactive bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes. Rendered as SVG circles, each bubble’s x-position maps to horsepower, y-position to torque, and radius to highway MPG, with colors assigned per make via `d3.scaleOrdinal` and `d3.interpolateTurbo`. Hovering reveals a tooltip showing the car make. The chart includes axes, labels, a size legend for MPG values, and a color legend, all built with D3 v7 and data from `bubblechart.csv`.