A large field of use of least squares refers to the analysis of data series in order to highlight tendencies or laws of behavior that allow modeling the phenomena in a more compact form for their present or future use. 3,430 more words

## Tags » Calibrations

#### Uncertainty Estimation (II): Combined & Expanded Uncertainties. Cover Factor kp

**5.- Estimation of Combined & Expanded Uncertainty. Cover factor kp**

A physical measurement, however simple, has a model associated with the actual process. The physical model is represented by a mathematical model that in many cases implies approximations. 2,289 more words

#### Uncertainty Estimation (I): GUM Guidelines

Uncertainty of the result of a measurement reflects the lack of exact knowledge of the value of the measurand. The result of a measurement after correction for recognized systematic effects is still only an… 2,185 more words