{"version":"1.0","type":"rich","title":"Fork of Activity6_Question4","description":"This bubble chart displays the correlation between population, urban population, and median age for several countries across different years, with bubble size encoding median age and color distinguishing the year. A tooltip appears on mouseover, showing country, year, population, and urban population. The visualization is built with D3 v7, using `d3.csv` for data loading, `d3.scaleLinear` for axes and bubble sizing, and `d3.scaleOrdinal` with `d3.schemeCategory10` for year colors, all rendered as SVG circles with interactive event handlers.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9ad4780687c645fc82ed52a917e3b9bd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}