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A property that may have different values for different individuals and for which these values can be organised into distinct groups. These distinct groups must be chosen so they do not overlap and so that every value belongs to one and only one group, and there should be no doubt as to which one.
Example
The eye colours of a class of Year 9 students.
Note: The Curriculum usage of category variable is equivalent to qualitative variable.
See: category variable
Curriculum achievement objectives reference
Statistical investigation: (Level 8)
