{"version":"1.0","type":"rich","title":"fresh block","description":"This example presents four JavaScript practice problems that compute the average population of a small dataset of U.S. states. The page displays the problems in a heading and paragraph, while the solutions run in the developer console. The code uses the D3.js v4 `d3.mean()` method for the first problem, then implements the same calculation manually using a `for` loop, `forEach` iteration, and a `while` loop for the remaining three. Each approach prints its result to the console, demonstrating alternative ways to calculate a mean without the D3 helper.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-922a376cfc6c41f34f07d12ce35db4d3?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}