{"version":"1.0","type":"rich","title":"Combined Chart","description":"This combined chart displays average study hours as bars and average exam scores as a line, grouped by sleep-hour bins. It uses `d3.rollups` to aggregate the CSV data and a dual-axis layout with an SVG render. The chart is built with D3 v7, featuring flexible column detection and dark-themed styling.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f5dde4034f874ca48cebbe51a684de3f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}