Exercises
Mix and Match
The following items describe a column in a data table. On the basis of the description, assign a one- or two-word name to the variable, indicate its type (categorical, ordinal, or numerical), and describe the cases. If the data are a time series, identify the frequency of the data. The first item is done as an example.
Variable Name | Type | Cases | ||
---|---|---|---|---|
Nom | Ord | Num | ||
Model of cellular telephone used by customers | Model | ✓ | Customers | |
Weights of people, measured in pounds | Weight | ✓ | People | |
1. Brand of car owned by drivers | ||||
2. Income of households, measured in dollars | ||||
3. Color preference of consumers in a focus group | ||||
4. Counts of customers who shop at outlets of a chain of retail stores |
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