Definition: A can assume only a finite number of values, e.g., number of weeds, number of defective
Definition: A can assume the infinitely many values corresponding to the points on a line interval, e.g., height, weight.
See Example 1.2 for an example of qualitative versus quantitative variable.
Also, see Figure 1.1 for a diagram of the types of data we have defined.
Identify each of the following variables as qualitative or quantitative:
1. The most frequent use of your microwave oven (reheating, defrosting, warming, other)
2. The number of consumers who refuse to answer a telephone survey
3. The door chosen by a mouse in a maze experiment (A, B, or C)
©1998 Brooks/Cole Publishing/ITP