TABLE 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a videocassette recorder made by the company over the past 12 months are satisfied with their products.
-Referring to Table 1-1, the possible responses to the question "What is your annual income rounded to the nearest thousands?" are values from a
A) categorical random variable.
B) parameter.
C) discrete numerical random variable.
D) continuous numerical random variable.

Question

Quizplus · Accepted Answer

The possible responses to the question "What is your annual income rounded to the nearest thousands?" are numerical values that are discrete (rounded to the nearest thousands). Therefore, it is a discrete numerical random variable. It is not a categorical random variable because the responses are not categories or labels. It is also not a parameter because a parameter is a numerical value that describes a population, not individual responses.

TABLE 1-1 The Manager of the Customer Service Division of a Major