The entities on which data are collected are（）
A. elements
B. populations
C. samples
D. None of these alternatives is correct
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A characteristic of interest for the elements is called a（n）（）
A. sample
B. data set
C. variable
D. None of these alternatives is correct
Data obtained from a nominal scale（）
A. must be alphabetic
B. can be either numeric or nonnumeric
C. must be numeric
D. must rank order the data
The scale of measurement that has an inherent zero value defined is the（）
A. ratio scale
B. nominal scale
C. ordinal scale
D. interval scale
The collection of all elements of interest in a particular study is（）
A. the population
B. the sampling
C. statistical inference
D. descriptive statistics
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