Question

which of the following correctly describes the relationship between a sample and a population?
a sample is a group of subjects selected from a population to be studied.
a population is a group of samples that may or may not be included in a study.
a sample is a group of populations that are subject to observation.
a population and a sample are not related.

Explanation:

A sample is a subset of a population. It is selected to represent the population in a study. The other options mis - define the relationship.

Answer:

A. A sample is a group of subjects selected from a population to be studied