Lance, an advertising researcher, is selecting potential survey participants from a list of all the people who have ordered hmr dietary products by mail since january 2012. the respondents will be sent a collection of ads and asked to select the ad that is most relevant to their health needs. since every person in the target population has an equal and known likelihood of being picked, the group he selects will be a
a. projective group
b. probability sample
c. non-probability sample
d. focus group
e. mini-universe

Value economics capital scarcity opportunity cost wealth labor trade-offs standard of living good a. condition of not having enough resources to produce all the things people want b. alternative choices made by consumers in the marketplace c. sum of those economic products that are tangible, scarce, useful, and transferable d. tools, equipment, machinery, and factories used in the production of goods and services e. tangible item that is economically useful or that satisfies an economic want f. quality of life based on the ownership of the necessities and luxuries that make life easier g. people with all their efforts, abilities, and skills h. cost of the next-best alternative use of money, time, or resources when one choice is made rather than another i. study of how people try to satisfy their needs through the careful use of scarce resources j. worth that can be expressed in dollars and cents