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chapter 3 vocabulary

TermDefinition
probability the change that some event will occur.
simple event one outcome or a collection of outcomes.
outcome a possible result in a probability experiment.
random outcomes occur at random if each outcome is equally likely to occur.
complementary events two events in which either one or the other must happen, but they cannot happen at the same time.
uniform probability model a probability model which assigns equal probability to all outcomes.
theoretical probability the ratio of the number of ways an event can occur to the number of possible outcomes. it is based on what should happen when conducting a probability experiment.
experimental probability an estimated probability based on the relative frequency of positive outcomes occurring during an experiment. it is based on what actually occurred during such an experiment.
sample space the set of all possible outcomes in a probability experiment.
tree diagram a diagram used to show the sample space and the total number of possible outcomes in a probability experiment.
compound event an event that consists of two or more simple events.
simulation an experiment that is designed to model the action in a given situation.
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.
premutation an arrangement or listing in which order is important.
independent events two or more events in which the outcome of one event does not affect the outcome of the other event(s).
dependent events two or more events in which the outcome of one event does affect the outcome of the other event(s).
fair game a game where each player has an equally likely chance of winning.
compound event an event that consists of two or more simple events.
relative frequency a ratio that compares the frequency of each category to the total.
unfair game a game where there is not a chance of each player being likely to win.
Created by: niahgilliam1