A researcher examines the records of all registered voters

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1. A researcher examines the records of all registered voters in one city and finds that 43% are registered democrats. Is the evaluated group a population or a sample?

2. A sample of 120 employees of a company is selected and the average age is found to be 37 years. Is the given value a statistics or a parameter?

3.A researcher examines the records of all registered voters in one city and finds that 43% are registered Democrats. Is the given value a statistics or a parameter?

Reference no: EM13602296

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