1. The problem asks for the term used to describe a portion of the population selected to represent the entire population. 2. In statistics, a **population** is the entire group of individuals or items that we want to study. 3. A **sample** is a subset of the population chosen to represent the population in a study. 4. A **statistic** is a numerical value calculated from a sample. 5. A **parameter** is a numerical value that describes a characteristic of the entire population. 6. A **sampling technique** refers to the method used to select the sample from the population. 7. Therefore, the correct term for a portion of the population selected to represent the population is **sample**. Final answer: **sample**