{"version":"1.0","type":"rich","title":"activity6 question-4","description":"This interactive bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 20 car makes. Each circle represents a car make, positioned by horsepower and torque on the x and y axes, with circle size encoding highway MPG and color distinguishing the make. The visualization uses D3 v7 with SVG rendering, featuring a tooltip that displays the car make on hover and a legend for bubble size. The chart is built using `d3.csv`, `d3.scaleLinear`, `d3.scaleOrdinal`, and `d3.axisBottom`/`d3.axisLeft`, with smooth opacity transitions on mouse events.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/75f7115454a34bbf9bca8817e9203b7a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}