{"version":"1.0","type":"rich","title":"activity 6_question","description":"This interactive bubble chart visualizes the correlation between birth rate, life expectancy, and GDP for fourteen countries. Each bubble's position encodes life expectancy (x-axis) and birth rate (y-axis), while its size reflects GDP and its color categorizes the country. Hovering over a bubble reveals its name. Built with D3 v7, the visualization uses `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` for color mapping, and `d3.cs` to load the `bubblechart.csv` data. A legend clarifies the GDP scale, and a tooltip appears on mouseover.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2918920d84294a0696a65290d28a9247?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}