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11 July, 16:39

According to the U. S. Census bureau, 23.5% of people in the United States are under the age of 18. In a random sample of 250 residents of a small town in Ohio, 28% of the sample was under 18. Which one of the following statements is true?

1. 23.5% and 28% are statistics, 250 and 18 are parameters

2. 23.5% and 28% are parameters, 250 and 18 are statistics

3. 23.5% and 28% are parameters, 18 is a statistic

4. 28% is a parameter and 23.5% is a statistic

5. 23.5% is a parameter and 28% is a statistic

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Answers (1)
  1. 11 July, 20:16
    0
    Option 5) 23.5% is a parameter and 28% is a statistic

    Step-by-step explanation:

    We are given the following in the question:

    "According to the U. S. Census bureau, 23.5% of people in the United States are under the age of 18. In a random sample of 250 residents of a small town in Ohio, 28% of the sample was under 18."

    Population is the collection of all the observation of individual of interest.

    Population of interest:

    People in the United States

    Parameter is any value that describes the population.

    Parameter:

    23.5% of people in the United States are under the age of 18

    Sample is a subset of a population and is always smaller than the population.

    Sample:

    Random sample of 250 residents of a small town in Ohio

    Statistic is any value that describes a sample.

    Statistic:

    28% of the sample was under 18

    Thus, the correct answer is

    Option 5) 23.5% is a parameter and 28% is a statistic
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