Chapt21 - Quantitative variables always have units units...

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data: systematically recorded information, whether numbers or labels, together with its context context: context tells who was measured, what was measured, how data was collected, where the data was collected, why and when the study was recorded data tables: An arrangement of data in which each row represents a case (the “Who”) and each column represents a variable (the “What”) variable: characteristics recorded about each individual categorical variables: a variable that names categories (whether with words or numerals) is called categorical quantitative variables: a variable in which the numbers act as the numerical values is called quantitative.
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Unformatted text preview: Quantitative variables always have units. units: units describe how a value is measured (eg. Dollars, pounds, inches, etc.) identifier: a categorical variable with exactly ONE individual in each category. We can use these to identify exactly the “ who ” of the data. ordinal variable: variables that report order without natural units. These types of variables can still be categorized as quantitative or categorical, depending on how they are used. You have to think deeper to decide what it is. respondents: individuals who answer a survey subject/participants: people on whom we experiment experimental units: animals, plants or inanimate subjects...
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This note was uploaded on 04/12/2011 for the course STA 215 taught by Professor Tba during the Spring '08 term at Grand Valley State.

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