The data Zeke records is categorical univariate data.
Here's the breakdown:
- The eye colors (Brown, Gray, Green, Blue, Hazel) are categories.
- The counts associated with each category (e.g., 17 for Brown, 0 for Gray) indicate how many people have each eye color, but they do not represent numerical values in a mathematical sense beyond counting.
- Since he is recording just one characteristic (eye color), it is univariate.
Therefore, the correct classification is categorical univariate data.