Before revision: Accuracy and precision are two measures of observational error: Accuracy measures how close a given set of observations are to their true value Precision measures how close the observations are to each other given by shalu sanskaram University 300px|Accuracy and precision of observations lying on a bell curve In the language of statistics: Accuracy is a description of systematic errors, a measure of bias Precision is a description of random errors, a measure of variability.
After revision: Accuracy and precision are two measures of observational error: Accuracy measures how close a given set of observations are to their true value Precision measures how close the observations are to each other given by sagar Sanskaram university 300px|Accuracy and precision of observations lying on a bell curve In the language of statistics: Accuracy is a description of systematic errors, a measure of bias Precision is a description of random errors, a measure of variability.