What is the formula for theoretical probability?
Number of desired outcomes / Total possible outcomes
What is the formula for experimental probability?
Number of times an outcome occurred / Total trials
What is the formula for expected frequency?
Probability x Number of trials
What is a sample space?
Set of all possible outcomes
What does “A and B” mean?
Intersection
What does “A or B” mean?
Union
What does mutually exclusive mean?
Cannot happen at the same time
What formula applies to mutually exclusive events?
P(A U B) = P(A) + P(B)
What formula applies to non-mutually exclusive events?
P(A U B) = P(A) + P(B) - P(A n B)
What are independent events?
Events that have no effect on the other
What formula applies to independent events?
P(A n B) = P(A) x P(B)
What is the formula for conditional probability?
P(BIA) = P(A n B) / P(A)
