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Questions: 1. Rick Santorum, a candidate for the 2012 Republican nomination, claimed that “62 percent of kids who go into college with a faith commitment leave without it.” [Source: http://bit.ly/A77XED] What is being explicitly compared here? Is it a longitudinal or cross-sectional comparison? If 62 percent is the “part”, what is the “whole”? 2. Of [...]
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You probably already know about and have used weighted means — they are one of the most popular ways for professors to calculate grades. For example, if quizzes are going to be 30% of the grade and the midterm + final is going to be 70% of the grade then if your grades look [...]
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From http://dailyinfographic.com: 1. Look at the list of top states. What is not accounted for that should be? 2. There were 1.4 million DUI arrests in 2010. There were 310 million people in the U.S. in 2010. 1.4 / 310 = .0045, or about 4.5 out of 1,000. Does this mean 4.5 out of 1,000 [...]
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Via http://www.flickr.com/photos/gdsdigital/4963409391/sizes/o/in/photostream/ Click on the graphic to enlarge. IN this graphic, the association is made that the more people were laid off at a company, the bigger the salary. That seems like we are rewarding incompetence! What might be a confounding factor? What should be taken into account to fix the comparison? Hint: ptgaeocfiszeoynmtp If such [...]
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Look at the infographic here: Carbon FootPrint [LARGE VERSION] Questions: 0. Junk Charts Trifecta: What issue is the chart addressing? What does the chart say? What does the data say? (Are they in alignment?) 1. Who is the biggest polluter in raw terms? 2. Who is the biggest polluter per capita? 3. In understanding which [...]
From Forbes: Bringing Up Bebe? No Thanks. I’d Rather Raise a Billionaire Quick: Name a French billionaire. Now name one who is self-made. A bit harder, non? According to the Forbes World’s Billionaires List, published today, France has sixteen billionaires. The U.S. boasts far more: 425. And a great number of those American billionaires, from Bill Gates (No. [...]