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Ch03 - CHAPTER3 Inthefollowing please circlethe...

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CHAPTER 3 ART AND SCIENCE OF GRAPHICAL PRESENTATIONS MULTIPLE CHOICE QUESTIONS In the following  multiple-choice questions, please circle the correct answer. 1. The effect of making  the slope of a line graph  appear  steeper can be created  by: a. Stretching the vertical axis. b. Shrinking the horizontal axis. c. Stretching the horizontal axis. d. Both a and  b ANSWER: d 2. Possible methods  of creating distorted  impressions with  bar charts include: a. Stretching the vertical axis. b. Shrinking the horizontal axis. c. Constructing  the bars so that their widths  are proportional to their heights. d. All of the above ANSWER: d 3. You are less likely to be misled  by a graph  if you: a. Focus your attention  on the numerical values that the graph  represents. b. Avoid  being influenced  by the graph’s caption. c. Both a and  b d. Neglect the scale used  on the axes. e. Both b and  d ANSWER: c 30
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31 Chapter Three 4. Possible methods  of graphical deception  include:  a. A graph  without  a scale on one axis. b. A graph’s caption  that influences the impression  of the viewer. c. Only absolute changes in value, rather than percentage changes, are reported. d. Stretching the vertical axis or shrinking  the horizontal axis. e. All of the above. ANSWER: e 5. Which of the following  is not a characteristic of graphical excellence? a. The graph  presents small data  sets concisely and  coherently while large data sets are   easily presented  in tabular form. b. The ideas and  concepts the statistician wants to deliver are clearly understood  by the   viewer of the graph. c. The   graph   encourages   the   viewer   to  compare  two   or   more  variables   to   depict   relationships  between  the variables or to explain  how  and  why  the observed  results   occurred. d. There is no distortion  of what  the data reveal. e. The graph  induces  the viewer  to address  substance  of the data  and  not the form  of  the graph. ANSWER: a
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Art and Science of Graphical Presentations 32 TRUE/FALSE QUESTIONS 6. Graphically excellence is a term  usually  applied  to techniques  that  are informative  and   concise and  that impart information  clearly to their viewers.  ANSWER: T   7. An   excellent   chart   is   one   that   can   replace   a   thousand   words   and   still   be   clearly   comprehended  by its readers.   ANSWER: T 8. If the form  of the graph  replaces  the substance  of the data,  the graph  is performing  to   function and  graphical excellence is achieved.
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