Super Glossary

Accuracy

Science / Chemistry / Accuracy

Accuracy: Compare with precision and trueness. Accuracy is the correctness of a single measurement. The accuracy of a measurement is assessed by comparing the measurement with the true or accepted value, based on evidence independent of the measurement. The closeness of an average to a true value is referred to as 'trueness'.

Related Words

Accuracy: Is the correctness of a measure when comparing to a known standard. See also resolution and precision.

January Barometer: A statistic from 'The Stock Traders Alamanac' reflecting, with 88% accuracy, that the overall stock market rises in a year when the S&P is up in the month of January and drops when the index . . . View Full Definition

Informationless Trades: The speed and accuracy with which prices reflect new information.

Systematic Error: Systematic errors have an identifiable cause and affect the accuracy of results.

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