Demographics and population statistics state farm insurance, Ask an Expert

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Demographics and Population Statistics State Farm Insurance Company would like to estimate the proportion of volunteer firefighters across the country who are full-time teachers. The 25 largest volunteer fire companies in the United States are identified. Each is contacted and asked to complete a short survey regarding the number of volunteers and the occupation of each volunteer.

a. Is this an observational or an experimental study?

b. Describe the sample in this problem.

c. Is this a random sample? Justify your answer.

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Statistics and Probability, Statistics

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