Exhibit 1-4 in Many Universities, Students Evaluate Their Professors by Means of Means

Multiple Choice

Exhibit 1-4
In many universities, students evaluate their professors by means of answering a questionnaire. Assume a questionnaire is distributed to a class of 45 students. Students are asked to answer the following:
1. Sex
2. Race (African descent, Caucasian, Other)
3. Age
4. Number of hours completed
5. Grade point average
6. My instructor is a very effective teacher
-Refer to Exhibit 1-4. How many variables are in this data set?

A) 3
B) 4
C) 5
D) 6