![]() ![]() ![]() More commonly, it is a description of only systematic errors, a measure of statistical bias of a given measure of central tendency low accuracy causes a difference between a result and a true value ISO calls this trueness.In other words, precision is a description of random errors, a measure of statistical variability. ( February 2021) ( Learn how and when to remove this template message)Īccuracy and precision are two measures of observational error.Īccuracy is how close a given set of measurements ( observations or readings) are to their true value, while precision is how close the measurements are to each other. Please help improve it to make it understandable to non-experts, without removing the technical details. This article may be too technical for most readers to understand.
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