# Stats Def

 The flashcards below were created by user Anonymous on FreezingBlue Flashcards. Probability A value between zero & one, inclusive, describing the realative possibility (chance or likelyhood) an even will occur Experiment A process that leads to the occurence of one and only one of several possible observations Outcome A particular result of an experiment Event A collection one or more outcomes of an experiment Classical Probability Outcomes of an experiment are equally likely. Mutually Exclusive The occurance of one event means that none of the other events can occur at the same time Collectively Exhaustive At least one of the events must occur when an experiment is conducted Empirical Probability The probability of an event happening is the fraction of the time similar events happened in the past Law Of Large Numbers Over a large # of trials the empirical probability of an event will approach its true probability Subjective Concept Of Probability The likelyhood (probability) of a particular event happening that is assigned by an individual based on whatever info is available. Special Rule Of Addition P(A)+P(B) Complement Rule 1-P(~A) General Rule Of Addition P(A)+P(B)-P(A/B) Joint Probability A probability that measures the likelyhood two or more events will happen concurrently. Special Rule Of Multipcation P(A)P(B( Independence The occurance of one event has no effect on the probability of the occurance of another event. General Rule of Multiplication P(A)P(B/A) Dependent One out come relies on another Conditional Probability The probability of a particular event occuring, given that another event has occured. Contingency Table A table used to classify sample observatios according to two or more identifiable characteristics. Tree Diagram Graph that is helpful in organizing calculations that invlove several stages Prior Probability The intial probability based on the present level of information Posterior Probability Arevised probability based on additional information. Mulitplication Formula If there are M ways of doing one thing and n ways of doing another thing, there are MXN was of doing both Permutation Formula Any arrangement of r objects selected from a single group of n possible objects. AuthorAnonymous ID111747 Card SetStats Def DescriptionStats notes Updated2011-10-24T16:04:39Z Show Answers