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Mathematics 21 Online
OpenStudy (anonymous):

Which of the following activities are examples of data gathering? Check all that apply. A. Finding the mean weight of heart-disease patients in a study B. Counting the votes in an election to determine the next mayor C. Measuring the DCH (diameter chest-high) of 200 trees in a forest D. Making a pie chart showing the kinds of cars owned by people in a sample of 1000 E. Asking 500 telephone respondents what their favorite radio station is

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