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| group of methods used to collect, analyze, present, and interpret data and to make decisions |
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| consists of methods for organizing, displaying, and describing data by using tables, graphs, and summary measures |
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| average, range, charts and graphs |
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| consists of methods that use sample results to help make decisions or predictions about a population |
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| sample, then generalize to the whole |
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| consists of all elements whose characteristics are being studied |
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| a portion of the population selected for study |
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| numerical value calculated using population data |
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| numerical value calculated using sample data |
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| sample that represents the characteristics of the population as closely as possible |
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| a sample drawn in such a way that each element of the population has a chance of being selected |
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| data collected on different elements at the same point in time or for the same period of time |
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| data collected on the same element for the same variable at different points in time or for different periods of time |
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| quantitative and qualitative |
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| height, number of car accidents daily |
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| number of car accidents daily |
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| number of cars owned by a family |
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| qualitative data lists all categories and the number of elements that belong to each of the categories |
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| a graph made of bars whose heights represent the frequencies of respective categories |
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| a circle divided into portions that represent the relative frequencies or percentages of a population or a sample belonging to different categories |
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| a graph in which classes are marked on the horizontal axis and the frequencies, relative frequencies, or percentages are marked on the vertical axis |
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| each value is divided into two portions |
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| values that are small or very large relative to the majority of the values in a data set |
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