{"version":"1.0","type":"rich","title":"Activity6_question4","description":"A bubble chart plots engine displacement against fuel economy for various car models, with the bubble size encoding vehicle weight and the color encoding the number of cylinders via a categorical color scheme. The visualization uses D3 v7 to load CSV data, apply linear scales for the axes and a square-root scale for bubble radii, and render SVG circles. It also includes a legend showing the cylinder count categories.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f11a821678224f57b61242e7d48e7008?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}