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15 Cards in this Set
- Front
- Back
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Data
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The information we gather with experiments and with surveys is collectively
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Statistics
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The art of science of designing stidies and analyzing the data that studies produce.
the art and science of learning from data |
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Statistics Methods
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Design- planning how to obtain data
Description- summarizing the data that are obtained Inference- making decision and predictions based on the data |
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Subjects
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The entities that we measure in a study
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Population
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All subjects of interest
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Sample
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Subset of the information for whom we have data
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Description statistics
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Refers to methods for summarizing the data
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Inference statistics
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Refers to methods for prediction or making
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Parameter
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A numerical summary of the population
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Statistics
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a numerical summary of a sample taken from the population
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Random Sampling
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Each subject in the population hast he same chance of being selected
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Variable
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any characteristic that is observed for the subjects in a study
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Categorical
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each observation belongs to one of a set of categories
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quantitative
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observations on it take numerical values that represent different magnitudes of the variables.
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range
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the difference between the largest and the smallest observations
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