MATH-1410 Notes 2.4_shelton

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Cuyahoga Community College *

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1410

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Economics

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Jan 9, 2024

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docx

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2.4 – Graphical Misrepresentations of Data Graphics are considered misleading if they unintentionally create an incorrect impression. EXAMPLE 1: A home security company located in Minneapolis, Minnesota, develops a summer ad campaign with the slogan “When you leave for vacation, burglars leave for work.” According to the city of Minneapolis, roughly 20% of home burglaries occur during the peak vacation months of July & August. The advertisement contains the graphic shown in in Figure 20. Explain what is wrong with the graphic. EXAMPLE 2 : A national news organization developed the graphic shown in Figure 22 to illustrate the change in the highest marginal tax rate effective January 1, 2013. Why might this graph be considered misleading? EXAMPLE 3 : The time-series graph in Figure 24 depicts the number of residents in the U.S. living in poverty. Why might this graph be considered misrepresentative? Notes 2.4 - Page 1_Shelton
EXAMPLE 4 : The bar graph illustrated in Figure 27 is a USA Today-type graph. A survey was conducted by Impulse Research for Quilted Northern Confidential in which individuals were asked how they would flush a toilet when the facilities are not sanitary. What is wrong with the graphic? EXAMPLE 5 : Soccer continues to grow in popularity as a sport in the United States. In 1991, there were approximately 10 million participants in the U.S. aged 7 and older. By 2009, this number had climbed to 14 million. Describe how the graphic below used to illustrate this increase could be misleading. EXAMPLE 6 : Figure 30 represents the educational attainment (level of education) in 2013 of adults 25 years and older who are U.S. residents. Why might this graph be considered misrepresentative? Notes 2.4 - Page 2_Shelton
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