Measurement uncertainty, as described in ISO/IEC Guide 98, is a “parameter, associated with the result of a measurement, [which] characterizes the dispersion of values that could reasonably be ...

Precision can be defined as the closeness in agreement of results during a series of repeat measurements under presumed identical conditions. These results are often expressed as a standard deviation.

The Federal Reserve doesn’t actually name the wayward occupant of the White House in its new report attempting to gauge the recent spike in trade uncertainty—but the measure might as well be called ...

Learn about entropy, a key concept in finance, which quantifies randomness and helps predict market fluctuations and the ...

Measurement uncertainty represents a fundamental parameter in analytical chemistry, encapsulating the range within which the true value of a measurement is expected to lie. This concept is integral to ...

In order to use the result of a chemical analysis for other purposes, its quality must be assessed. One important quality feature is the probability that the result coincides with the ‘true’ value. It ...

GUM, the internationally approved technique for calculating measurement uncertainty, is reliant on the availability of a certified reference sample. Likewise, to find any repeatable offset (systematic ...

Perfect measurements are limited to counting. The number of people in your office can be measured exactly. Your weight cannot. There is always another decimal point of accuracy. You might argue, “What ...

If we tallied up the most common words we’ve used on this show over the last handful of years, “uncertainty” would rank high on the list. We’ve used it to describe what’s happening in the housing ...