{"version":"1.0","type":"rich","title":"Mobility Rate Bubble Chart","description":"This bubble chart displays the mobility rate of California universities against median parent household income, with circle size representing average cohort size and color indicating trends in parental income distribution. Built with D3.js v5 and d3-legend, the visualization uses `d3.scaleLinear` for axes, `d3.scaleSqrt` for bubble radius, and `d3.scaleDiverging` for color encoding. Data comes from Opportunity Insights' Mobility Report Cards dataset, filtered to California institutions. The chart includes labeled points for select universities, average reference lines, and interactive legends showing both color and size scales.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/305afa99b42b4bdd8683e691bdcabb01?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}