Uncertainty

From AMS Glossary
Jump to: navigation, search


uncertainty

The standard deviation of a sufficiently large number of measurements of the same quantity by the same instrument or method.

Hence, the noncorrectable part of the inaccuracy of an instrument; it represents the limit of measurement precision. The uncertainty of an instrument is caused by the unpredictable effects upon its performance of such factors as friction, backlash, and electronic noise.

Personal tools
Namespaces
Variants