Final answer:
The statement is false; a cohort refers to a group of individuals in a study sharing a common characteristic rather than just being a mix of ages, weights, genders, or health statuses.
Step-by-step explanation:
The statement is false. A cohort is not simply a group of subjects of different ages, weights, genders, and health statuses.
Instead, a cohort refers to a group of individuals who share a defining characteristic, typically in a research or study context.
For instance, a cohort might consist of people born in the same year or people who have a specific disease. Researchers can track the cohort over time to observe changes and outcomes related to the characteristic they share.