{"version":"1.0","type":"rich","title":"Data Visualization Short Presentation Task8","description":"This example loads a CSV dataset and computes the average age of children per country, displaying the result as a JSON summary using D3’s `flatRollup` and `sum`. The code demonstrates asynchronous data fetching with `fetch`, parsing via `csvParse`, and type coercion of numeric fields. It uses D3 v7 for data aggregation and DOM updates, selecting a container to render the computed summary as preformatted text. The visualization highlights a simple data-processing pipeline without graphical charts, focusing on aggregation logic and state management.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/88504b16ede6421b84204f5b4212e4ef?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}