Ch03 - CHAPTER 3 ART AND SCIENCE OF GRAPHICAL PRESENTATIONS...

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Unformatted text preview: 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 graphs caption. c. Both a and b d. Neglect the scale used on the axes. e. Both b and d ANSWER: c 30 31 Chapter Three 4. Possible methods of graphical deception include: a. A graph without a scale on one axis. b. A graphs 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 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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This document was uploaded on 10/25/2011 for the course LAPS 2320 at York University.

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Ch03 - CHAPTER 3 ART AND SCIENCE OF GRAPHICAL PRESENTATIONS...

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