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

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 Black, White, Other)
3. Age
4. Number of hours completed
5. Grade point average
"6. My instructor is a very effective teacher
$$\begin{array}{l}1&2&3&4&5\\\text { strongly agree } & \text {moderately agree} & \text { neutral } & \text {moderately disagree} & \text { strongly disagree }\\\end{array}$$ "
-Refer to Exhibit 1-4. How many observations are in this data set?

A) 5
B) 6
C) 3
D) 45