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IATE Terminology

Statistics · SCIENCE
ga diall caighdeánach REFERENCE Faomhadh an téarma seo mar chuid de Thionscadal Lex
en SD | S.D. | standard deviation
DEFINITION measure of how close or how far data points are from their average, or deviates from the mean - which, in a data sample, is estimated as the positive square root of the sum of the squares of the deviations between the observations and the mean of the data, divided by one less than the total number of observations REFERENCE COM-EN, based on: <BR>IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8 http://goldbook.iupac.org/S05911.html [4.12.2009]
COMMENT The standard deviation is the positive square root of the <i>variance</i> [ IATE:1681483 ]. <BR>The variance and the closely-related standard deviation are measures of how spread out a distribution is. In other words, they are measures of variability.<BR>The variance is computed as the average squared deviation of each number from its mean.
fr écart type | déviation standard
DEFINITION c'est la racine carrée de la moyenne des carrés pris par rapport à la moyenne arithmétique ;racine carrée de la variance de la population ou de l'échantillon  REFERENCE ISO/R 1213-2:1971
de Standardabweichung
DEFINITION positive Quadratwurzel aus der Varianz, die wiederum dem Erwartungswert des Quadrats der zentrierten Zufallsgröße entspricht REFERENCE DIN V ENV 13005:1999: Leitfaden zur Angabe der Unsicherheit beim Messen, S. 43
Statistics · SCIENCE · Chemistry
ga diall caighdeánach coibhneasta REFERENCE Faomhadh an téarma seo mar chuid de Thionscadal Lex
en relative standard deviation | RSD
DEFINITION the absolute value of the coefficient of variation ( IATE:1594321 ) REFERENCE Wikipedia http://en.wikipedia.org/wiki/Relative_standard_deviation [8.12.2009]
COMMENT It is a measure of a statistical estimate's reliability obtained by dividing the standard error by the estimate; then multiplied by 100 to be expressed as a percent.<BR>In analytical chemistry is widely used for comparing the uncertainty between different measurements of varying absolute magnitude. It can be calculated with the formula: s<sub>r</sub> = s/x ̄<BR>
Statistics · SCIENCE
ga diall caighdeánach eimpíreach REFERENCE Faomhadh an téarma seo mar chuid de Thionscadal Lex
fr écart-type empirique | déviation standard empirique
DEFINITION racine carrée positive de la variance REFERENCE NF X 06-003:1971
Chemistry
ga diall caighdeánach faoin gcéad REFERENCE Faomhadh an téarma seo mar chuid de Thionscadal Lex
en percent standard deviation | percentage standard deviation | per cent standard deviation
DEFINITION the value of the relative standard deviation ( IATE:1748226 ), expressed in percent. It can be calculated from the relative standard deviation by multiplying by 100 REFERENCE IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8 http://goldbook.iupac.org/P04487.html [4.11.2009]
COMMENT It is recommended that the 'relative standard deviation' be reported, rather than the 'percentage standard deviation', in order to avoid confusion where results themselves are expressed as percentages. The term 'coefficient of variation' in place of 'relative standard deviation' is not recommended.
de Variationskoeffizient | relative Standardabweichung in Prozent | Streuungskoeffizient | relative Standardabweichung
DEFINITION die Standardabweichung geteilt durch den Erwartungswert REFERENCE DIN ISO 3534-1:2009: Statistik – Begriffe und Formelzeichen – Teil 1: Wahrscheinlichkeit und allgemeine statistische Begriffe, S. 58
Statistics · SCIENCE
ga diall caighdeánach geoiméadrach REFERENCE Faomhadh an téarma seo mar chuid de Thionscadal Lex
en GSD | geometric standard deviation
DEFINITION the geometric standard deviation of a lognormal distribution is the exponential of the standard deviation of the associated normal-distribution REFERENCE Advisory Committee on Human Radiation Experiments Radiation Gloss.,11/05/1994
de GSD | geometrische Standardabweichung
DEFINITION ein Streuungsmaß der Abweichungen vom geometrischen Mittelwert REFERENCE Wikipedia, s. v. „Geometrische Standardabweichung“, https://de.wikipedia.org/wiki/Geometrische_Standardabweichung (24.10.2017)
COMMENT Im Gegensatz zur arithmetischen Standardabweichung wird hierbei das Produkt und nicht die Summe interpretiert.
Chemistry
ga laistigh de dhiall caighdeánach saotharlainne REFERENCE Faomhadh an téarma seo mar chuid de Thionscadal Lex
en within laboratory standard deviation
DEFINITION a measure of repeatability ( IATE:1373092 ) REFERENCE Based on: Commission Regulation (EC) No 152/2009 laying down the methods of sampling and analysis for the official control of feed CELEX:32009R0152/EN
Statistics · Technology and technical regulations
ga meastóir an diallta chaighdeánaigh REFERENCE Faomhadh an téarma seo mar chuid de Thionscadal Lex
fr estimateur de l'écart-type
DEFINITION statistique utilisée pour estimer l'écart-type d'une population ou de la loi de probabilité considérée comme représentant cette population REFERENCE NF X 06-003:1971
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