breakdown law

breakdown law

[′brāk‚dau̇n ‚lȯ] (statistics) The law that if the event E is broken down into the exclusive events E1, E2,… so that E is the event E1 or E2 or …, then if F is any event, the probability of F is the sum of the products of the probabilities of Ei and the conditional probability of F given Ei.