
Concept explainers
In Exercises 23-44, formulate but do not solve the problem. You will be asked to solve these problems in Section 2.2.
TRUSTWORTHINESS OF ONLINE REVIEWS In a survey of 1000 adults aged 18 and older, the following question was posed: "Are other travelers' online reviews trustworthy?" The participants were asked to answer "yes," "no," or "not sure." The survey revealed that 370 answered "no" or "not sure." It also showed that the number of those who answered "yes" exceeded the number of those who answered "no" by 340. What percentage of respondents answered (a) "yes," (b) "no," and (c) "not sure"?
Source: Alliance Global Assistance.

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