A strong r means two variables move together — it does NOT mean one causes the other. This is the trap the exam sets every year: coincidence, a common cause, or confounding can all fake a relationship. This is the real knowscape from knowhere, not a picture of one. Drag it. Watch what actually changes.
A scatterplot shows you two things moving together, and correlation puts a number on how tightly. But together isn't because — the line you draw predicts, it doesn't explain. Every question here is really asking: how strong is the pattern, and how far can you trust it?
Correlation measures association strength but never proves one variable causes another—hidden variables or pure chance can create strong relationships without causation.
knowhere maps every concept to what it rests on and what rests on it — 1 underneath this one, 1 built on top. Each one says why, in a sentence, not as an arrow on a diagram.
Each one is its own knowscape in the app — built for how a particular student takes things in, not one explanation handed to everybody.
Every HSC and VCE concept in knowhere is built like this one — mapped to your curriculum, never capped by it. Free for a week. No card tricks, no lecture.
Free for a week, then $49 once — the 2026 exam pass ends itself after the last exam. 0 days of the pass left.
Free for a week, then a plan you can stop any time.
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