A measurement result is usually expressed as a (“measured quantity value” ± “measurement uncertainty”). The measured quantity value aims at estimating the “true” quantity value of a measurand (VIM3: Entry 2.10). On the other hand, the measurement uncertainty is evaluated “based on the information used” (VIM3: Entry 2.26) since there is no “true” value for Read more about The measurement uncertainty was…?![…]

Many important decisions are based on qualitative results (i.e. examinations) suggesting a well-known quote from Lord Kelvin is somehow incomplete…