{"version":"1.0","type":"rich","title":"activity 7","description":"A pie chart visualizes the distribution of employees across departments in an HR dataset. It shows the relative counts for each department as colored slices with hover tooltips revealing exact values. A legend identifies each department's color. Built with D3 v7, the code loads CSV data, aggregates counts using `d3.rollup`, and renders the chart with `d3.pie()` and `d3.arc()`, applying an ordinal color scale and SVG elements for the slices and legend.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6c3a8cc292b34a10ab9dff7b6d826bcb?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}