conditional probability

conditional probability

noun
Statistics, Mathematics. the probability that an event will occur under the condition that another event occurs first: equal to the probability that both will occur divided by the probability that the first will occur.

Origin:
1960–65

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World English Dictionary
conditional probability
 
n
statistics the probability of one event, A, occurring given that another, B, is already known to have occurred: written P(A|B) and equal to P(A and B)|P(B)

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