Test: SAT Mathematics

1.

To determine how citizens feel about the city’s proposed plan to build a second library, researchers surveyed 50 library visitors and found that 42 of them supported the plan and 30 of them would even be open to a tax increase to fund it. Which of the following statements must be true?

It is clear that most citizens are in favor of a second library, but unlikely that most citizens would support a tax increase to pay for it.

The researcher’s sampling method was flawed and may produce a biased estimate of the popularity of the proposal.

Because the researcher did not choose a large enough sample size, the results of the survey are questionable.

The majority of the city’s citizens support the construction of a second library.

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