{"version":"1.0","type":"rich","title":"Activity6_Task4 Question 4","description":"This interactive bubble chart visualizes correlations between average horsepower, torque, and highway MPG across 31 car makes. Each circle’s x-position maps to horsepower, y-position to torque, while radius encodes highway MPG and color distinguishes manufacturers. The visualization uses D3 v7 with `d3.scaleLinear` for axes and bubble sizing, `d3.scaleOrdinal` with `d3.interpolateTurbo` for categorical colors, and SVG tooltips on mouseover. A legend with circles and labels explains the MPG encoding. Data is loaded from a local CSV file.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/45acd932d2bd41718d5e879d5dc0c00c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}