This example displays a static SVG visualization of state population data, showing the mean population calculated from a small array of four U.S. states. The code first uses `d3.mean()` to compute and log the average, then replicates the calculation without the helper using `d3.sum()` and a manual `while` loop, printing each result to the console. The SVG canvas renders a placeholder text message, while the population computations are performed entirely in JavaScript using D3 v4 array methods. The visualization itself does not map the data graphically, focusing instead on demonstrating statistical calculations in the console.