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
Words nearby conditional probability
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)