{"version":"1.0","type":"rich","title":"Activity 6 task 4","description":"This bubble chart shows the correlation between average horsepower, torque, and highway MPG for 31 car makes, with bubble size encoding MPG and color distinguishing manufacturers. A tooltip displays the car make on hover. The visualization uses D3 v7’s `d3.csv`, `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` for color, and SVG circles with mouse event handlers. It includes a legend with size reference circles for MPG values and a color legend listing makes, rendered as static SVG with animated hover opacity transitions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9a4ed8bc14f04388a38633d5e3cb965f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}