&In ordinary usage, “accurate” and “precise” are often used as roughsynonyms, but scientists like to distinguish between them. Someone couldsay that a snake is over a meter long and be accurate (the snake reallydoes exceed one meter in length), but that is not a precise measurement.To be precise, the measurement would have to be more exact: the snake is1.23 meters long. The same distinction applies in scientific contexts tothe related words “accuracy” and “precision.”
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