{"version":"1.0","type":"rich","title":"Activity6_Question4","description":"This animated bubble chart compares life expectancy against healthcare spending across multiple countries from 1970 to 1974. Each circle represents a country-year observation, with bubble size scaled to spending and color uniquely identifying each country. Hovering reveals a tooltip with exact values. The visualization uses D3 v7 with SVG rendering, employing `d3.scaleLinear` for axes and bubble sizing, `d3.scaleOrdinal` for color assignment, and CSV data loaded via `d3.csv`. Interactive tooltips respond to mouse events for enhanced data exploration.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e0c2dd27d5084616b6755369c385a56b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}