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# 7 Math Ch. 9

### Probability

TermDefinition
combination an arrangement, or listing, of objects in which order is not important
complementary events the events of one outcome happening and that outcome not happening / the sum of these events are 1
compound events an event consisting of two or more simple events
dependent events two or more events in which the outcome of one event affects the outcome of the other event
experimental probability an estimated probability based on the relative frequency of positive outcomes occurring during an experiment
factorial the expression n! is the product of all the counting numbers beginning with n and counting backward to 1
fair game a game in which players of equal skill have an equal chance of winning
Fundamental Counting Principle uses multiplication of the number of ways each event in an experiment can occur to find the number of possible outcomes in a sample space
independent events two or more events in which the outcome of one event does not affect the outcome of the other event
outcome one possible result of a probability event
permutation an arrangement, or listing, of objects in which order is important
probability the chance that some event will happen / it is the ratio of the number of ways a certain event can occur to the number of possible outcomes
random outcomes that occur when each outcome is equally likely to occur
sample space the set of all possible outcomes of a probability experiment
simple event one outcome or a collection of outcomes
theoretical probability the ratio of the number of ways an event can occur to the number of possible outcomes
tree diagram a diagram used to show the total number of possible outcomes in a probability experiment
Created by: Miss Brinkoetter

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