{"version":"1.0","type":"rich","title":"Insurance charge in differnet US area","description":"This visualization displays the average medical insurance charges across four U.S. regions, revealing that the Southeast has the highest average charge. The chart encodes region on the x-axis and the mean of the `charges` field on the y-axis, with tooltips showing the region name on hover. Built with Vega-Lite API on top of d3.v5, it uses the `markArea` mark for a single colored band per region and applies a custom dark theme from the config file. Data is loaded asynchronously from a remote CSV of medical cost records via d3's `csv` function.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e0079fc3bb864e9db9cefdfd1e80ecb8?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}