TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The square root of the mean of the squares of individual deviations from the mean, in a "population" series; ...  3, record 1, English, - population%20standard%20deviation

Record number: 1, Textual support number: 2 DEF

The standard deviation of a finite population ... generally denoted by the Greek letter [sigma].  1, record 1, English, - population%20standard%20deviation

Record number: 1, Textual support number: 1 OBS

In context, the population standard deviation is often referred to as simply "standard deviation".  6, record 1, English, - population%20standard%20deviation

Record number: 1, Textual support number: 2 OBS

for "standard deviation" : A great deal of confusion has been introduced into statistical literature by the many different expressions which have been used for the standard deviation and the simple derivatives of it. (...) The term "standard deviation" is now almost universally accepted (...). "Mean error" (Gauss), "mean square error" and "error of mean square" (Airy) have all been used to denote the standard deviation. The standard deviation is not to be confused with "standard error".  2, record 1, English, - population%20standard%20deviation

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Indice de dispersion défini comme la racine carrée de la moyenne des carrés des écarts individuels à la moyenne [arithmétique de la série d'une population].  3, record 1, French, - %C3%A9cart%2Dtype%20de%20la%20population

Record number: 1, Textual support number: 2 DEF

[...] désigné par [sigma], est la racine carrée positive de la variance.  7, record 1, French, - %C3%A9cart%2Dtype%20de%20la%20population

Record number: 1, Textual support number: 1 CONT

On dit que l'[écart-type de l'échantillon] est un estimateur non biaisé de l'écart-type de la population [...]  1, record 1, French, - %C3%A9cart%2Dtype%20de%20la%20population

Record number: 1, Textual support number: 1 OBS

En pratique, on rencontre rarement le terme "écart-type de la population". Cette notion est presque toujours indiquée par le terme "écart-type" accompagné du symbole sigma.  2, record 1, French, - %C3%A9cart%2Dtype%20de%20la%20population

Record number: 1, Textual support number: 2 OBS

«écart quadratique moyen» : Du point de vue sémantique, on pourrait croire qu'"écart quadratique moyen" est synonyme de "variance"; cependant, l'usage veut qu'"écart quadratique moyen" soit synonyme d'"écart-type" et que "variance" se définisse comme étant "l'écart quadratique élevé au carré". (Voir FEPRO, 1967, page 48).  2, record 1, French, - %C3%A9cart%2Dtype%20de%20la%20population

Record number: 1, Textual support number: 3 OBS

«écart moyen quadratique» : L'observation faite pour "écart quadratique moyen" vaut également pour la variante linguistique: "écart moyen quadratique".  2, record 1, French, - %C3%A9cart%2Dtype%20de%20la%20population

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

... the mean of the squares of the individual deviations from the mean [of a population distribution].  2, record 2, English, - population%20variance

Record number: 2, Textual support number: 2 DEF

Is symbolized by sigma squared.  5, record 2, English, - population%20variance

Record number: 2, Textual support number: 1 OBS

In context, the "population variance" is often referred to as simply "variance".  5, record 2, English, - population%20variance

Record number: 2, Textual support number: 2 OBS

Mean square error is used in older documents and taken to mean variance. It should not be used in that sense.  4, record 2, English, - population%20variance

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Caractéristique de dispersion d'une série statistique [de population] que l'on obtient en divisant la somme des carrés des écarts à la moyenne par le nombre N des observations [...] Sa valeur est très proche de celle de la fluctuation.  5, record 2, French, - variance%20de%20la%20population

Record number: 2, Textual support number: 2 DEF

On la désigne par sigma (lettre grecque minuscule) au carré ou parfois par la lettre V.  3, record 2, French, - variance%20de%20la%20population

Record number: 2, Textual support number: 1 OBS

En pratique, on rencontre rarement le terme «variance de la population». Cette notion est presque toujours indiquée par le terme «variance» accompagné du symbole sigma au carré.  3, record 2, French, - variance%20de%20la%20population

Record number: 2, Textual support number: 2 OBS

«fluctuation» : La fluctuation se confond avec la variance quand le calcul de la dispersion a comme valeur centrale la moyenne arithmétique. Toutefois, le terme fluctuation a un sens générique par rapport au terme variance.  3, record 2, French, - variance%20de%20la%20population

Record number: 2, Textual support number: 3 OBS

variance : terme normalisé par l'AFNOR.  3, record 2, French, - variance%20de%20la%20population

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 OBS

varianza: término extraído del CAPITAL Business Dictionary con la autorización de LID Editorial Empresarial.  2, record 2, Spanish, - varianza

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

... the average of the squared distance between the estimate and the parameter.  4, record 3, English, - mean%20square%20error

Record number: 3, Textual support number: 2 DEF

A measure of the error to which one is exposed by the use of an estimator, which is given by the expected value of the squared difference between the estimator and a (theoretically) correct value. For unbiased estimators, the mean square error equals the variance.  6, record 3, English, - mean%20square%20error

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish