👉 In mathematics, a retest is a form of error correction in which an original test result is replaced with a new one. This can be done to correct errors or inconsistencies that were previously found in an initial test result. For example, if a person has a mild case of the flu and tests positive for it, but they have been given incorrect results from previous tests. The person could retest their positive results by replacing them with the correct test results obtained from a different source or method. Re

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