Section 2.1 Graphical Summaries for Qualitative Data 45 a. Construct a relative frequency bar graph for these data. b. Construct a relative frequency Pareto chart for these data. c. In which category was the largest amount spent? d. Social Security, Medicare and Medicaid, and interest on the debt are considered to be mandatory spending because they fulfill promises previously made by the government. Including other mandatory spending with these categories, what percentage of the spending was mandatory? Working with the Concepts 17. iPod sales: The following frequency distribution presents the number of iPods sold (in thousands) in each quarter of each year from 2007 to 2010. Number Sold Quarter (in thousands) Jan.–Mar. 2007 10,549 Apr.–Jun. 2007 9,815 Jul.–Sep. 2007 10,200 Oct.–Dec. 2007 22,121 Jan.–Mar. 2008 10,644 Apr.–Jun. 2008 11,011 Jul.–Sep. 2008 11,052 Oct.–Dec. 2008 22,727 Jan.–Mar. 2009 11,013 Apr.–Jun. 2009 10,215 Jul.–Sep. 2009 10,177 Oct.–Dec. 2009 20,970 Jan.–Mar. 2010 10,885 Apr.–Jun. 2010 9,410 Jul.–Sep. 2010 9,050 Oct.–Dec. 2010 19,446 Source: Wikipedia a. Construct a frequency bar graph. b. Construct a relative frequency distribution. c. Construct a relative frequency bar graph. d. True or false: The four quarters with the largest sales were all October to December. 18. Popular video games: The following frequency distribution presents the numbers of copies sold in 2009 (through November) for each of the ten best-selling video games. Sales Game Platform (millions of units) Call of Duty: Modern Warfare 2 Xbox 360 4.2 Wii Fit with balance board Wii 3.5 Wii Sports Resort with MotionPlus Wii 2.4 Mario Kart Wii with wheel Wii 2.2 Wii Play with remote Wii 2.1 Halo 3: ODST Xbox 360 2.0 Pokemon Platinum DS 1.9 Call of Duty: Modern Warfare 2 PS3 1.9 Madden NFL 10 Xbox 360 1.5 New Super Mario Bros. Wii Wii 1.4 Source: NPD Group a. Construct a frequency bar graph. b. Construct a relative frequency distribution. c. Construct a relative frequency bar graph. d. True or false: More than 20% of the games sold were Call of Duty: Modern Warfare 2. 19. More iPods: Using the data in Exercise 17: a. Construct a frequency distribution for the total number of iPods sold in each of the four quarters Jan.–Mar., Apr.–Jun., Jul.–Sep., and Oct.–Dec. b. Construct a frequency bar graph. c. Construct a relative frequency distribution. d. Construct a relative frequency bar graph. e. Construct a pie chart. f. True or false: More than half of iPods were sold between October and December. 20. Popular platforms: Using the data in Exercise 18: a. Construct a frequency distribution that presents the total sales for each of the platforms among the top ten games. b. Construct a frequency bar graph. c. Construct a relative frequency distribution. d. Construct a relative frequency bar graph. e. Construct a pie chart. f. True or false: More than half the games sold among the top ten were Wii games. 21. Hospital admissions: The following frequency distribution presents the five most frequent reasons for hospital admissions in U.S. community hospitals in a recent year. Frequency Reason (in thousands) Congestive heart failure 990 Coronary atherosclerosis 1400 Heart attack 744 Infant birth 3800 Pneumonia 1200 Source: Agency for Health Care Policy and Research a. Construct a frequency bar graph. b. Construct a relative frequency distribution. c. Construct a relative frequency bar graph. d. Construct a relative frequency Pareto chart. e. Construct a pie chart. f. The categories coronary atherosclerosis, congestive heart failure, and heart attack refer to diseases of the circulatory system. True or false: There were more hospital admissions for infant birth than for diseases of the circulatory system.
navidi_monk_essential_statistics_1e_ch1_3
To see the actual publication please follow the link above