That's the point of the puzzle — real data analysis often starts with eyeballing a shape before you dig into the numbers. Removing the labels forces you to judge symmetry, peaks, and tails on sight, which is exactly the skill this game is meant to build.
Does everyone get the same puzzle on a given day?+−
Yes — today's histogram is generated from a seed based on today's date, so it's identical for every visitor, the same way a daily word puzzle works. It changes at midnight in your local time zone.
What counts toward my streak?+−
Answering correctly on a day you haven't already played extends your streak by one. A miss resets it to zero. Your streak, best streak, and totals are saved in your browser only — nobody else can see them.
What are the five distribution shapes?+−
Normal (symmetric, bell-shaped), uniform (flat, no peak), right-skewed (peak on the left, long tail right), left-skewed (peak on the right, long tail left), and bimodal (two separate peaks). Each has a distinct visual signature once you know what to look for.