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Last edited Mar 1, 2018

Created on Mar 1, 2018

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.

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