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What (who) is systematic error - definition

DIFFERENCE BETWEEN A MEASURED QUANTITY VALUE AND A REFERENCE QUANTITY VALUE

ObservationalError; Measurement error; Experimental error; Systematic bias; Random error; Systematic error; Systemic error; Alleged systemic bias; Random errors; Systematic errors; Measurement errors; Observational Error; Systematic effect; Chance error; Accidental error; Constant error; Stochastic error; Observation error; Systematic and random error; Systematic and random errors; Random and systematic errors; Measurement Error

systematic error

¦ noun Statistics an error whose effect is not reduced when observations are averaged.

random error

¦ noun Statistics an error in measurement caused by factors which vary from one measurement to another.

Observational error

Observational error (or measurement error) is the difference between a measured value of a quantity and its true value.Dodge, Y.

https://en.wikipedia.org/wiki/Observational_error

Wikipedia

Observational error

Observational error (or measurement error) is the difference between a measured value of a quantity and its true value. In statistics, an error is not necessarily a "mistake". Variability is an inherent part of the results of measurements and of the measurement process.

Measurement errors can be divided into two components: random and systematic.Random errors are errors in measurement that lead to measurable values being inconsistent when repeated measurements of a constant attribute or quantity are taken. Systematic errors are errors that are not determined by chance but are introduced by repeatable processes inherent to the system. Systematic error may also refer to an error with a non-zero mean, the effect of which is not reduced when observations are averaged.

Measurement errors can be summarized in terms of accuracy and precision. Measurement error should not be confused with measurement uncertainty.

https://en.wikipedia.org/wiki/Observational error

Examples of use of systematic error

1. She said: "After Jack died we complained and the hospital keep saying there was a systematic error and that four different doctors should have examined the first x–ray.