Assume that Verizon Wireless is interested in studying the pricing expectations of its customers. If the study calls for selecting at random 100 people from each of three age groupings, ___________ sampling is being used.

Assume that Verizon Wireless is interested in studying the pricing expectations of its customers. If the study calls for selecting at random 100 people from each of three age groupings, ___________ sampling is being used.

Assume that Verizon Wireless is interested in studying the pricing expectations of its customers. If the study calls for selecting at random 100 people from each of three age groupings, ___________ sampling is being used.



a) random

b) stratified

c) quota

d) area

e) experimental



Answer: b) stratified


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