Math Quiz-Lessons 11.6-11.9

probability of disjoint events formula

P(A or B)=P(A)+P(B)

probability of overlapping events formula

P(A or B)=P(A)+P(B)-P(A and B).

probability of dependent events formula

P(A and B)=P(A) x P(B given A).

probability of independent events formula

P(A and B)=P(A) x P(B)

combination

a selection of objects where the order in which the objects are chosen is not important

permutation

an arrangement of objects in which order is important

disjoint events or mutually exclusive events

events that have no outcomes in common

overlapping events

events that have one or more outcomes in common

n factorial

the product of the integers from 1 to n and is written as "n!"

dependent events

two events are, if the occurrence of one event does affect the probability of the occurrence of the other event

independent events

two events are, if the occurrence of one event does not affect the probability of the occurrence of the other event

complementary events

two events are, if they are disjoint events and one event or the other must occur