TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The operation made for the purpose of estimating the variance of a population or of a probability distribution considered as representing this population.  2, record 1, English, - estimation%20of%20the%20variance%20of%20a%20population

Record number: 1, Textual support number: 1 OBS

1. An unbiased estimator of the variance of a probability distribution obtained from a sample of n independent observations is obtained by dividing by n-1 the sum of the squares of the deviations of the observed values from the arithmetic mean of this sample. 2. The positive square root of the unbiased estimator of the variance is often used as an estimator of the standard deviation. However, it ought to be noted that this estimator is not unbiased.  3, record 1, English, - estimation%20of%20the%20variance%20of%20a%20population

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Opération ayant pour but d’estimer la variance d’une population, ou de la loi de distribution considérée comme représentant cette population.  3, record 1, French, - estimation%20de%20la%20variance%20d%26rsquo%3Bune%20population

Record number: 1, Textual support number: 1 OBS

1. Un estimateur sans biais de la variance d’une loi de probabilité à partir d’un échantillon de n observations indépendantes s’obtient en divisant par n 1 la somme des carrés des écarts des valeurs observées par rapport à la moyenne arithmétique de cet échantillon. 2. La racine carrée positive de l'estimateur sans biais de la variance est souvent utilisée comme estimateur de l'écart-type. Il faut noter pourtant que cet estimateur n’ est pas sans biais.  3, record 1, French, - estimation%20de%20la%20variance%20d%26rsquo%3Bune%20population

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 OBS

The expectation of the square of the centred variate.  1, record 2, English, - variance%20of%20a%20random%20variable

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 OBS

Espérance mathématique du carré de la variable centrée.  1, record 2, French, - variance%20d%26rsquo%3Bune%20variable%20al%C3%A9atoire

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 OBS

In a variate distribution, the expectation of the product of the qth power of the centred variate (X - E(X] by the sth power of the centred variate (Y - E(Y] NOTE - The joint centred moment of orders 2 and 0 is the variance of the marginal distribution of X. The joint centred moment of orders 0 and 2 is the variance of the marginal distribution of Y.  1, record 3, English, - joint%20centred%20moment%20of%20orders%20q%20and%20s

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 OBS

Dans une loi de probabilité à deux variables, espérance mathématique du produit de la qème puissance de la variable centrée(X-E(X]) par la sème puissance de la variable centrée(Y-E(Y] NOTE-Le moment centré d’ordres 2 et 0 est la variance de la loi marginale de X. Le moment centré d’ordres 0 et 2 est la variance de la loi marginale de Y.  2, record 3, French, - moment%20centr%C3%A9%20d%26rsquo%3Bordres%20q%20et%20s

Record 3,  Textual support,  Spanish