Most analysts focus on the cost of tuition as the way to measure the cost of a college education. but incidentals, such as textbook costs, are rarely considered. a researcher at drummand university wishes to estimate the textbook costs of first-year students at drummand. to do so, she monitored the textbook cost of 250 first-year students and found that their average textbook cost was $600 per semester. identify the population of interest to the researcher.

the population of interest to the researcher is all the first year Drummand university students

Explanation:

It is said in the question, the research take interest in finding textboook cost for various semester. for doing so she noticed  average textbook cost is $600 per semester. she monitored total student of 250 first year student.

Therefore, total number of student in which research took interest is all the first year Drummand university students   because he analyse only 250 students of the first year