random error

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random error

The patternless differences observed between successive analytical results or statistical trials. Even though the individual results are patternless and unpredictable, the range of random error can be predicted with a given probability once sufficient experience has been gained. The random error is then quantified by the standard deviation, the coefficient of variation, and other statistics. See: measurement error; systematic error
See also: error
References in periodicals archive ?
Random errors for the case [R.sub.L] = 50 [OMEGA] and [R.sub.H] = 330 [OMEGA] are presented in Fig.
The proposed QMEC is rectifying nonuple random errors or conjunction of both random and burst errors totaling nonuple.
The degree to which ghost echoes and/or vertical gradients in reflectivity combined with vertical wind shear can lead to increased random errors or biases in the wind estimates made from space by WIVERN can be assessed using recent observations made with the 94-GHz radar at Chilbolton in southern England pointing 45[degrees] off zenith with a time resolution of 6 s and gate length of 60 m.
The term [e.sub.i] is the random error on the concentration scale that typically is assumed to be normally distributed, but this distribution may vary in width over the concentration interval.
Since the VIC method can be conducted in-situ, it is capable of handling both random errors (noise) due to sensor degradation and systematic errors (offset) associated with changing working conditions.
For top-down UQ applied to NM measurements of the same item by both the operator (often using DA) and the inspector (often using NDA), this paper describes an existing and a new approach to separately estimate operator and inspector systematic and random error variance components.
First, we assume that the errors of radar QPE are composed of systematic bias and random errors. Second, we assume that the errors of radar QPE vary with the transformation of precipitation system.
In practice, beside the normally distributed random errors, the observed data contain a lot of high-frequency pseudo periodic signals, which provide the so called "colored noise" in the time series.
The impact of random errors in the ASTER and SRTM DEMs on the derived topographic attributes (aspect and slope) is evaluated through the Monte Carlo Simulation (MCS).
During analytical phase, Random errors, Repeat testing, Proficiency Testing Performance (PTP), evaluation by EQAS and ILC were monitored.
Where the noise comes from, survey sampling or random errors around a hard measure (e.g., mortality), makes little difference.