This section discusses how to identify the variable in a data set.
Vocabulary
Case - unit that you are getting information for
Variable - any characteristic that is recorded for each case. They generally correspond to the columns in a data table.
Categorical variable - divides the cases into groups and places them into a category.
Quantitative variable - gives a numerical quantity for each case.
Explanatory variable - used to predict the value of another variable.
Response variable - the variable that is predicted by the explanatory variable.
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Problems 1.1 - 1.10
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