Precision
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Precision describes how closely repeated measurements of the same quantity agree with one another, regardless of whether they are correct.
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A dispenser that fills bottles at 283.3, 284.1, and 283.9 mL every time is precise, because the values cluster tightly together.
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"Precise" and "accurate" are routinely treated as the same word; a set of tightly clustered results can still be consistently wrong.