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14 Cards in this Set
- Front
- Back
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Data
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Contains information about some group of individuals
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Individuals
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Objects (people, animals, things) included in the study
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Population
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The set of values or the variable for all the individuals of interest
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Census
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The collection of data from every member of the population
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Sample
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The set of the values of the variable for some of, but not all of, the individuals of interest
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Descriptive Statistics
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Involves methods of organizing, picturing, and summarizing information from samples or populations
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Inferential Statistics
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Involves methods of using information from a sample to draw conclusions regarding the population
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Variable
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A characteristic of an individual. A variable can take different values for different individuals.
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Categorical or Qualitative Variables
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Places an individual into one of several groups or categories
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Quantitative Variable
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Takes numerical values for which arithmetical operations such as adding and averaging, make sense
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Parameter
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A set of numbers computed from an entire population
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Statistics
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A set of numbers computed from a sample. It describes a characteristic of a sample
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Discrete Data
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Data that can only take certain values.
For example: the number of students in a class (you can't have half a student). (Opposite of Continuous Data). |
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Continuous Data
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Data that can take any value (within a range)
Examples: heights. People's heights could be any value (within the range of human heights), not just certain fixed heights. (Opposite of Discrete Data) |
