The Normal Distribution

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Hook

The shape that keeps appearing

Measure a million adult heights and plot them. Stack coins flipped 100 times. Track repeated measurements of the same object. Watch test scores across a huge class. They all draw the SAME silhouette — a single graceful bell, peaking at the average and tapering symmetrically toward the tails. It appears so often it feels like nature has a favorite shape.

It's called the normal distribution — and there's a reason it's everywhere.

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