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Probability of Simple Events

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Term
Definition
Probability   The measure of how likely the event is to occur.  
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Experiment   An activity involving chance.  
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Trial   Each repetition or observation of an experiment.  
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Outcome   The result of a trial.  
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Event   A set of one or more outcomes.  
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Likely   An event that has a probability to occur more than 1/2, but less than 1.  
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Unlikely   An event that has a probability to occur more than 0, but less than 1/2.  
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Certain   An event that has a probability of 1 to occur, or 100%.  
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Impossible   An event that has a probability of 0 to occur.  
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As Likely As Not   An event that has a probability of 1/2 to occur, or 50%.  
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Theoretical Probability   Used to find the probability of an event when all outcomes are equally likely. This is used to make predictions BEFORE performing an experiment.  
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Complement   The set of all outcomes that are NOT the event.  
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Experimental Probability   The probability of an event based on what has already happened.  
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Independent Events   the result of the second event is not affected by the result of the first event.  
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Dependent Events   the probability of one event occurring influences the likelihood of the other event.  
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Created by: Mrs Ott
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