provides attributes for describing numerical ranges. gives a minimum estimated value for the approximate measurement. donne une estimation de la valeur minimum pour la mesure. gives a maximum estimated value for the approximate measurement. donne une estimation de la valeur maximum pour la mesure. where the measurement summarizes more than one observation or a range, supplies the minimum value observed. lorsque la mesure résume plus d'une observation, fournit la valeur minimum observée. where the measurement summarizes more than one observation or a range, supplies the maximum value observed. lorsque la mesure résume plus d'une observation, fournit la valeur maximum observée. specifies the degree of statistical confidence (between zero and one) that a value falls within the range specified by min and max, or the proportion of observed values that fall within that range.