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Exam: 250711RR - Data: Description, Collection, and Sampling

This solved exam covers data description, collection methods, and sampling techniques.

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    Student ID: 22039100 Exam: 250711RR - Data: Description, Collection, and Sampling When you have completed your exam and reviewed your answers, click Submit Exam . Answers will not be recorded until you hit Submit Exam . If you need to exit before completing the exam, click Cancel Exam . Questions 1 to 20: Select the best answer to each question. Note that a question and its answers may be split across a page break, so be sure that you have seen the entire question and all the answers before choosing an answer. 1. To answer the question, refer to the following list of raw data. 63, 71, 72, 77, 77, 78, 86, 77, 88, 88 What is the mean for the data? A. 77 B. 77.7 C. 88 D. 77.5 2. If there are an odd number of data values in a set, the median will be the A. value that appears in the center. B. average of the two end values. C. average of all of the values divided by the number of values in the set. D. value that appears the greatest number of times. 3. Which type of plot takes quantitative data and forms classes out of it, thus turning it into qualitative data? A. Stem - and - leaf plot B. Pie chart C. Dot plot D. Histogram 4. Which of the following statements about interpreting standard deviation is true? A. The Empirical Rule can't be applied unless the frequency distribution is mound - shaped and symmetric. Chebyshev's Rule can be applied to any data set, regardless of the shape of its frequency distribution. B. Chebyshev's Rule can't be applied unless the frequency distribution is mound - shaped and symmetric. The Empirical Rule can be applied to any data set, regardless of the shape of its frequency distribution. C. Neither Chebyshev's Rule nor the Emprical Rule require any assumptions about the frequency distribution. D. Neither the Empirical Rule nor Chebyshev's Rule can be applied to data unless the frequency distribution is mound - shaped and symmetrical. 5. To answer the question, refer to the following data.

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