單項選擇題A summary measure that is computed from a sample to describe a characteristic of the population is called()

A.a parameter
B.a statistic
C.a population
D.Both A and C are correct,since they are the same


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2.單項選擇題A politician who is running for the office of premier in a state with 3 million registered voters commissions a survey. In the survey, 53.6% of the 5000 registered voters interviewed say they plan to vote for him. The population of interest is the()

A.3 million registered voters in the state.
B.5000 registered voters interviewed.
C.53.6%of,or 2680,voters interviewed who plan to vote for him
D.46.4%of,or 2320,voters interviewed who plan not to vote for him

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