What term describes a small, manageable number of subjects that represent the population?

What term describes a small, manageable number of subjects that represent the population?

• A. Population
• B. Samples
• C. Census
• D. Case series

Answer: (B)

Sampling is about selecting a small, manageable subset of individuals from a larger population to learn about the whole group. A group of subjects chosen in this way is called a sample, and the goal is for that sample to reflect the population’s key characteristics so that what you observe in the sample can be generalized to the population. This practical approach lets you estimate population features—like averages or the rate of a condition—without needing to assess every person. A census would involve studying every member of the population, which is often not feasible. A case series, meanwhile, describes a few individual cases and isn’t intended to represent the broader population.

Sampling is about selecting a small, manageable subset of individuals from a larger population to learn about the whole group. A group of subjects chosen in this way is called a sample, and the goal is for that sample to reflect the population’s key characteristics so that what you observe in the sample can be generalized to the population. This practical approach lets you estimate population features—like averages or the rate of a condition—without needing to assess every person. A census would involve studying every member of the population, which is often not feasible. A case series, meanwhile, describes a few individual cases and isn’t intended to represent the broader population.