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10 Cards in this Set
- Front
- Back
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population
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a collection of all individuals or items under consideration.
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In a finite population, what is the probability that a member selected at random has a specific attribute?
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= the percentage of the population that has that attribute.
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random experiment
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an action whose outcome cannot be predicted with certainty.
(ex. selecting one state at random from 50 states in USA) |
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event
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some specified result that may or may not occur when a random experiment is performed.
(ex. when a state is randomly selected of 50 states in USA, the state obtained is in the South) |
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frequentist interpretation of probability
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The probability of an event is the long–run proportion of times that the event occurs in independent repetitions of the random experiment.
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set
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a collection of elements (members, objects, items, points)
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empty set
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the set containing no elements.
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when is A a subset of B?
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If every element of A is a subset of B.
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When are two sets equal sets?
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When the sets contain the same elements.
(A is a subset of B and B is a subset of A) |
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When is A a proper subset of B?
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When A is a subset of B, but B is not a subset of A.
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