{"version":"1.0","type":"rich","title":"Activity 8_Q4.A4","description":"A bubble chart displays patient age and sodium-to-potassium ratio, with bubble size encoding the count of patients per drug and color distinguishing drug types. The visualization uses D3 v6 to load CSV data from a GitHub repository, render SVG circles, and apply scales via `d3.scaleLinear`, `d3.scaleSqrt`, and `d3.scaleOrdinal`. Axes, labels, and a legend are added using `d3.axisLeft` and `d3.axisBottom`, with data aggregated through `d3.rollup`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/bc2b7bee1b9f455b95e54d30c858502d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}