unit 6 test review Flashcards
what is the intersection symbol?
∩, and, A∩B
what is intersection?
when a and b are happening at the same time, the intersection of the two probabilities (terms of both probabilities must apply)
how do you solve for intersection? (independent)
(a)(b) - multiply
how do you solve for intersection? (dependent)
(a)(b/a) - multiply
what is an independent probability?
two events that have no effect on each other - REPLACEMENT OF CARDS
what is dependent probability?
two events that effect the outcome of each other - NO REPLACEMENT OF CARDS
what is the union symbol?
∪, A∪B, A or B
what is union?
the union of two probabilities, if two things are happening at once (terms of both probabilities don’t need to apply)
how do you solve for union? (inclusive)
A+B-(A∩B) - the sum of a and b minus their intersection
how do you solve for union? (exclusive)
A+B
what is mutually exclusive?
two events that cannot happen at the same time
what is mutually inclusive?
two events that can happen at the same time
