probability - Answers a numerical measure of the likelihood that an event will occur
random experiment - Answers a process that generated well-defined experimental outcomes
sample space - Answers (for an experiment) the set of all experimental outcomes
sample point - Answers an experimental outcome
two rules of probabilities - Answers 1) 0 <= P(Ei) <= 1
2) sum of all P(Ei) = 1
classical method of calculating probabilities - Answers assigning probabilities on the assumption of
equally likely outcomes
relative frequency method of calculating probabilities - Answers (empirical method) assigning
probabilities based on experimentation or historical data
event - Answers a collection of sample points
probability of an event - Answers equal to the sum of the probabilities of the sample points in the event
union - Answers the event containing all sample points belonging to the events in the union (A U B)
conditional probability - Answers the probability of an event given that another event has occurred