30) Tenzin is conducting research for a speech about coffee’s importance in U.S. culture. He has
found a survey on coffee consumption that he is considering using as a source. It was conducted by
a major coffee company, which asked its customers to answer a series of questions about their
coffee consumption. More than 10,000 people from across the United States sent in their
responses. The respondents were from a wide range of ages and backgrounds. Tenzin ultimately
decided that the survey was likely to be biased and decided not to use it. What factor most likely
motivated Tenzin’s decision?
A) who was included in the survey
B) the trustworthiness of the survey’s source
C) the representativeness of the survey sample
D) the broadness of the survey sample
31) Which study or survey described below would be the most reliable source for your
presentation?
A) the Democratic National Committee’s survey that indicates most Americans want roads and
bridges maintained even if that requires higher taxes
B) a study of ten dentists that shows most of them recommend Colgate toothpaste
C) a women’s magazine report on how satisfying the romantic relationships of their readers are
compared with the general population
D) an independent polling firm’s national survey showing an increasingly old and white
Republican Party