variance

Angol

Főnév

variance (tsz. variances)

1. eltérés
2. diszharmónia
3. (matematika) variancia In probability theory and statistics, variance is the expected value of the squared deviation from the mean of a random variable. The standard deviation (SD) is obtained as the square root of the variance. Variance is a measure of dispersion, meaning it is a measure of how far a set of numbers is spread out from their average value. It is the second central moment of a distribution, and the covariance of the random variable with itself, and it is often represented by $\sigma ^{2}$, $s^{2}$, $\operatorname {Var} (X)$, $V(X)$, or $\mathbb {V} (X)$.

További információk

• variance - Szótár.net (en-hu)
• variance - Sztaki (en-hu)
• variance - Merriam–Webster
• variance - Cambridge
• variance - WordNet
• variance - Яндекс (en-ru)
• variance - Google (en-hu)
• variance - Wikidata
• variance - Wikipédia (angol)