Science & TechMental model

A number without a plus-minus isn't a measurement, it's a claim.

Every measurement is uncertain, no matter how expensive the instrument. That is why labs worldwide agree: a result is complete only when its uncertainty is stated, such as 12.3 ± 0.2 grams. The international guide GUM sets out how to calculate it. The interval says how probable it is that the true value lies inside.

Useful: Two values whose uncertainties overlap are not different, even if their digits are.

Source: en.wikipedia.org

DenkwerkzeugMessenStatistik

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