Most Analysts Focus on the Cost of HECS Fees as the Way

Multiple Choice

Most analysts focus on the cost of HECS fees as the way to measure the cost of a university education.But incidentals,such as textbook costs,are rarely considered.A researcher at the University of Adelaide wishes to estimate the textbook costs of first-year students at the University.To do so,she monitored the textbook cost of 250 first-year students and found that their average textbook cost was $300 per semester.
-Identify the variable of interest to the researcher.

A) The cost of incidental expenses of University of Adelaide students.
B) The age of University of Adelaide students.
C) The textbook cost of first-year University of Adelaide students.
D) The year in school of University of Adelaide students.