Probability*

• Event - an outcome
• ∪ - union "or"
• ∩ - intersection "and"
• Sample Space - all possible outcomes
• Universal Set - all possible outcomes which all other sets are subsets
• Independence - one event isn't affected by another
• Mutually exclusive - there is no intersection
• Symbol for sample space - Є
• Conditional probability - probability of an event, given another event has already occured
• P(A|B) means probability of A given B has already occured.
• Bayes Theorem - P(A|B) = (P(B|A)*P(A)) / P(B)
• P(A|B) = P(A∩B) / P(B)
• P(A∩B) = P(B|A) x P(A) (Dependent Law)