What is the difference between random error and systematic error?

Difference: 1. Systematic errors are regular and predictable, while random errors are unpredictable and irregular; 2. The factors that produce systematic errors already exist before measurement, while the factors that produce random errors It occurs randomly at the moment of measurement; 3. Random errors can only be estimated but cannot be eliminated, while systematic errors can be avoided as long as sufficient preparation is made in advance.

The difference between random error and systematic error

1. Random error is also called Accidental errors and uncertain errors are mutually compensating errors caused by small random fluctuations in a series of relevant factors during the measurement process. Systematic error refers to a non-random error.

2. System errors are regular and predictable, while random errors are unpredictable and irregular. The factors that produce systematic errors already exist before measurement, while the factors that produce random errors appear randomly at the moment of measurement. Random errors are compensatory and systematic errors are cumulative.

3. Random errors are caused by the influence of various unstable random factors in the analysis process. Systematic errors result in samples being drawn that are inappropriate for the research task; failure to understand the nature of the population distribution and the selection of a sampling procedure that may misinterpret the population distribution.

4. Random errors can only be estimated but cannot be eliminated. For systematic errors, people can analyze their causes and take measures to reduce or offset them; such errors can be avoided as long as sufficient preparations are made in advance.

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