{"version":"1.0","type":"rich","title":"Activity6_Tutorial4","description":"This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes. It reads data from a CSV file using `d3.csv` and renders circles in an SVG, with axes and labels scaled by `d3.scaleLinear`. Bubble size encodes MPG, while color maps each make via a `d3.scaleOrdinal` using `d3.interpolateTurbo` for the spectrum. Interactive tooltips appear on mouseover, showing the make, with a legend for MPG values and make categories.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9df756493ec3455f9c1debeaa841cdcd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}