The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products. The company is developing a survey to help them better understand their customers. In which year were you born?" are values from a: a. discrete numerical variable.
b. continuous numerical variable.
c. categorical variable.
d. table of random numbers.