ForewordIntroductionScopeNormative referencesTerms and definitionsSpecificationGeneralMedianDistribution around the medianApplication of dataSelected values of the Gaussian distributionNumerical example to illustrate the procedureExampleCalculationMedian values of expected hearing threshold deviationsSelected values of the statistical distribution of hearing threshold deviationsExpected median thresholds at audiometric frequencies from 9 000 Hz to 12 500 HzGeneralSpecificationNotes on the derivation of descriptive statistics of hearing thresholdsGeneralMediansMedians for audiometric frequencies from 125 Hz to 8 000 HzMedians for audiometric frequencies from 9 000 Hz to 12 500 HzStatistical distribution above and below the medianDispersion of source data around the expected median of hearing thresholdsGeneralCalculation of RMSE values