{"version":"1.0","type":"rich","title":"activity8task4","description":"A bubble chart shows the correlation between average horsepower (x-axis), average torque (y-axis), and highway MPG (bubble size) for a set of vehicle makes. Each make is color-coded using a categorical color scale, with a legend mapping bubble sizes to MPG values and a separate legend identifying each make. The D3.js v7 visualization is rendered as an SVG, with interactive tooltips revealing the make on hover. The chart is built using `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` for color, and `d3.interpolateTurbo` for the color palette.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/450e0b619f30438a9517203c299503e8?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}