It is a summary statistic of statistical dispersion or variability. Reporting five numbers avoids the need to decide on the most appropriate summary statistic. Let an experiment yield a value formula 24 for the test statistic. A high result can be interpreted as indicating the accuracy of such a statistic. The apparent contradiction stems from the combination of a discrete statistic with fixed significance levels. But Fst is more than a descriptive statistic and measure of genetic differentiation. This may be seen by using Neyman's factorization criterion for a sufficient statistic. The machine learning community most often uses the ROC AUC statistic for model comparison. Population in 2010 is official data from 2010 Census released by Central Statistic Agency. Many hypothesis tests use a test statistic, such as the t-statistic in a t-test. The term ""t"-statistic" is abbreviated from "hypothesis test statistic". They rely on the medcouple statistic of skewness. Both the statistic and the underlying parameter can be vectors. Sometimes, the ROC is used to generate a summary statistic. The value of the statistic will double to 2.88.