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AP® Statistics

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Voter Participation

APSTAT-JQ4VTI

A political polling company wants to know what percent of a particular city’s population votes in a general election.

A week before the election, the company asks $100$ registered voters if they intend to cast a ballot, and $72\%$ of them say yes. Three days after the election, city officials state that $67\%$ of the registered voters cast ballots during the election.

What can be said about the two percentages?​

A

$72\%$ is a statistic; $67\%$ is a parameter.

B

$72\%$ is a parameter; $67\%$ is a statistic.

C

$72\%$ and $67\%$ are both statistics.

D

$72\%$ and $67\%$ are both parameters.

E

Without information about the standard deviations, one cannot say with certainty that either of these percentages is a statistic or a parameter.