Most analysts focus on the cost of tuition as the way to measure the cost of a university education. But incidentals, such as textbook costs, are rarely considered. A researcher at Free State University wishes to estimate the textbook costs of first-year students at UFS. To do so, he monitored the textbook cost of 500 first-year students and found that their average textbook cost was R 500 per semester. Identify the population of interest to the researcher.

The population of interest to the researcher is first-year students at Free State University (UFS).