conditional probability

noun

The probability that an event will take place given the restrictive assumption that another event has taken place, or that a combination of other events has taken place. (Mathematically, the definition would be that the conditional probability of B given A is equal to the joint probability of A and B divided by the probability of A.)

Similar
contingent probability

Meanings

nounconditional probability (countable and uncountable, plural conditional probabilities)

plural conditional probabilities

  1. countableuncountableThe probability that an event will take place given the restrictive assumption that another event has taken place, or that a combination of other events has taken place. (Mathematically, the definition would be that the conditional probability of B given A is equal to the joint probability of A and B divided by the probability of A.)

Synonyms & antonyms

nounthe probability that an event will occur given that one or more other events have occurred

Similar
contingent probability

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Bulgarian условна вероятност
  • условна вероятност (uslovna verojatnost)probability
Chinese Mandarin 條件概率 /条件概率
  • 條件概率 /条件概率 (tiáojiàn gàilǜ)probability
Finnish ehdollinen todennäköisyys
  • ehdollinen todennäköisyysprobability
Polish prawdopodobieństwo warunkowe
  • prawdopodobieństwo warunkoweprobability
Portuguese probabilidade condicionada
  • probabilidade condicionadaprobability
Russian усло́вная вероя́тность
  • усло́вная вероя́тность (uslóvnaja verojátnostʹ)probability
Swedish betingad sannolikhet
  • betingad sannolikhetprobability
Tagalog pinasubaliang kalagmitan
  • pinasubaliang kalagmitanprobability
Ukrainian умо́вна ймові́рність
  • умо́вна ймові́рність (umóvna jmovírnistʹ)probability
Cite this entry
APA

conditional probability. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/conditional%20probability

MLA

“conditional probability.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/conditional%20probability. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “conditional probability,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/conditional%20probability.

Source: conditional probability on Wiktionary, CC BY-SA 4.0.