{"version":"1.0","type":"rich","title":"United States Educational Attainment","description":"A choropleth map of the United States displays the percentage of adults aged 25 and older with a bachelor's degree or higher, using data from the USDA Economic Research Service (2010-2014). County polygons are rendered via `topojson.feature` and `d3.geoPath`, colored by a threshold scale with the `d3-schemeGreens` palette. A tooltip, built with D3's `d3.select` and `d3.map`, shows each county’s area name, state, and percentage on mouseover. The map includes a legend generated with `d3.axisBottom` and a matching color scale.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/586fe1ea4381446490b6331d52e40f8e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}