Which of the following does not fall under demographics?

The correct choice pertains to the concept of demographics, which typically encompass statistical data about characteristics of a population. Demographics generally include aspects such as gender, age, and even specific characteristics like marital status or household income.

When considering educational background, while it is often a significant factor in socio-economic studies and market research, it does not fit the classic definition of a demographic characteristic. Demographics usually refer to inherent and unchanging traits, while educational background can change over time and is dependent on personal experiences rather than a static characteristic.

Eye color, while sometimes included in very specific studies, is not as commonly classified as a demographic category, as it does not have implications for social structures or market segmentation.

Overall, educational background distinctly differs as it reflects achievements and experiences rather than inherent characteristics of the population, solidifying its status outside the conventional demographic categories.