{"version":"1.0","type":"rich","title":"Activity_8_Question-4","description":"This bubble chart visualizes the Iris dataset, showing sepal length on the x-axis, sepal width on the y-axis, and petal length encoded as circle radius using d3.scaleSqrt. Each of the 150 flower samples appears as a semi-transparent steelblue circle. The chart uses d3.csv to load external data, d3.axisBottom and d3.axisLeft for axes, and d3.extent for domain calculation, rendering in SVG within an 800×600 viewport. Tooltip styling is predefined but not implemented.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9f6428a2d9d747bb9360423fa1e20274?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}