random variable

Noun

 * 1)  A quantity whose value is random and to which a probability distribution is assigned, such as the possible outcome of a roll of a dice.
 * 2)  A measurable function from a sample space to the measurable space of possible values of the variable.

Usage notes
Especially in discrete cases, a random variable is sometimes said to be indexed by the domain of its defining function, leading to notations such as $$X[n]$$ and $$X_i$$ to represent particular values of the codomain.

Synonyms

 * variate

Translations

 * Arabic: مُتَغَيِّر عَشْوَائِيّ
 * Czech: náhodná veličina
 * Esperanto: stokasto
 * Finnish: satunnaismuuttuja
 * German:, Zufallsgröße
 * Greek: τυχαία μεταβλητή
 * Hebrew:
 * Hungarian: valószínűségi változó, valváltozó
 * Icelandic:, slembibreyta, slembistærð, slemba
 * Japanese: 確率変数
 * Maori: taurangi matapōkere
 * Polish: zmienna losowa
 * Romanian: variabilă aleatorie, variabilă incidentală
 * Spanish: variable aleatoria
 * Swedish: slumpvariabel
 * Tagalog: alisagang aligin
 * Ukrainian: випадко́ва величина́