MATH 214 Final: MATH214_ALL-SECTIONS_FALL2005_0000_FINAL_SOL
10 Jan 2019
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For a sample to be chosen randomly, each element in the population must have an equal chance of being chosen. Describe any limitations of this method of sampling. The choice is not really random, because it has only teenagers at that particular mall in a suburban setting and so does not include teenagers living in urban or rural settings. Also, limiting the sample to teen with one friend may introduce a bias: an advertising agency surveyed households, asking the number of working televisions in their house. 0. 20 or 20: [10] construct an appropriate graph to display this data. A bar graph (not a histogram) or a circle graph with appropriate titles or labels would be sufficient: a consumer group test drives 10 new model cars, obtaining 31. 5, 24. 6, 29. 7, 26. 4, 29. 8, 31. 1, 27. 6, 28. 4, 27. 8, and 31. 1 mpg: [6] use your calculator to find an accurate mean and standard deviation of this sample data.
