{"version":"1.0","type":"rich","title":"average questions-2","description":"This example presents four JavaScript practice problems embedded in an HTML page, using a small dataset of U.S. states with their populations. The visualization shows no SVG graphics; instead, it prints computed averages to the browser’s developer console. The first problem uses `d3.mean()` from D3 v4 to calculate the mean population, while the second problem computes the same value manually using a `for` loop, a `forEach` method, and a `while` loop as alternative approaches. The code demonstrates basic array iteration and statistical calculation without any visual rendering.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-84b7f2dd1dc63c3edcc4df4fca79cbff?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}