Questions that are used to classify respondents into various groups for purposes of analysis are called:

GDP measures a country's economic output during

a. one week. b. one month. c. one year. d. five years.

Which of the following is NOT an example of performance data?

A) a list of product service centers available to customers B) the AHAM certification seal C) a label on a storm window that indicates the product's "R" value D) a window sticker on an automobile that lists the EPA gas mileage figures E) research sheets on server downtime and data transfer rates