Instruction 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 DVD recorder made by the company over the past 12 months are satisfied with their products.
-Referring to Instruction 1-1,the possible responses to the question "How much time do you use the DVD player every week on the average?" are values from a
A)continuous numerical random variable.
B)discrete numerical random variable.
C)categorical random variable.
D)parameter.

Question

Quizplus · Accepted Answer

The question asks for a measure of time, which can take on any numerical value along a continuous range (e.g. 1.5 hours, 2.3 hours, etc.). Therefore, it is a continuous numerical random variable. A discrete numerical random variable would have a finite number of possible values (e.g. number of DVDs purchased), and a categorical random variable would involve grouping responses into categories (e.g. age groups, product ratings). A parameter is a measure of a population, not a variable itself.

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