Variation and spread
Why the average alone is almost never the answer, and how to say how much the thing varies in units a reader can picture.
Report a spread alongside a central figure, in units the reader can act on
Up to 2 questions on this skill alone, marked against the bar beside this. It stops as soon as the answer is clear. No account, and your answers are not kept.
You'll need these first
What it unlocks
Start on Statistics & Data Literacy
Every skill above, ordered by what depends on what, with the projects above that as the evidence you actually did it. We work out where you already are first, so the path skips what you can do.
Start this path