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 of conditional probability

First recorded in 1960–65
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British Dictionary definitions for conditional probability

conditional probability


noun

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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