{"version":"1.0","type":"rich","title":"Task 3","description":"This bubble chart explores the relationship among three variables for 30 countries: oil consumption (represented by bubble area), total COVID-19 cases per million (x-axis), and population density (y-axis). It uses a filtered subset of a CSV dataset, limiting to densities under 1000. Built with D3 v7, the visualization employs `d3.scaleLinear` for axes, `d3.scaleSqrt` for radius scaling, and `d3.scaleOrdinal` for color. Interactive tooltips appear on mouseover, revealing exact values.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/292e5b0fc95d49178b884eadf609a6e9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}