problems

problems - Problems in quantitative reasoning Jeanine Meyer

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Problems in quantitative reasoning Jeanine Meyer Mathematics/Computer Science
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Outline Background More women murdered on the job Health Screening (e.g., HIV) Cognitive Reflection Test 3 puzzles studies by Shane Frederick, MIT Discussion
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Background Communicating Quantitative Information 'gen-ed' course using news stories to teach mathematics piloted Spring, 2005. 2 sections this semester newmedia.purchase.edu/~Jeanine/charts.html How do you all do in applying / using mathematics to understand issues of the day? When considering decision making, are the choices made by mathematically-able people the correct choices?
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More women murdered on the job Headline for actual news stories a dozen years ago in the New York Times 93% of people who die 'on the job' are men 14% of the men are murdered; 40% of the women
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What was the problem? Mis-use of percentages: comparing percentages with different bases Missing information: what killed the men?
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Observation Wrong, or, more typically incomplete information is common. This is good for pedagogy! Other topics for course include false positives in health screening polling lottery map projections trends in sports records
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Health Screening Consider: HIV (or other) screening 300,000 people tested 1% have condition Test is 99% accurate at returning positive result when patient has condition Test is 98% accurate at returning negative
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This note was uploaded on 11/11/2011 for the course MATH 112 taught by Professor Jarvis during the Winter '08 term at BYU.

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problems - Problems in quantitative reasoning Jeanine Meyer

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