{"version":"1.0","type":"rich","title":"Activity8_Task4","description":"This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes, with each circle's position determined by the x- and y-scales and its size encoding MPG via the `d3.scaleLinear` z-scale. Color mapping via `d3.scaleOrdinal` and `d3.interpolateTurbo` distinguishes makes, while animated hover effects and a custom tooltip built with D3 event handlers reveal the make name. The SVG chart includes labeled axes, a legend with circles for MPG values and color swatches, and reads from a CSV file using `d3.csv`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5e46e4a0704347e4aeb9cf76a02d6c5e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}