Convicted with Statistics

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Convicted with Statistics
Convicted with Statistics
Convicted with Statistics
Convicted with Statistics
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0.6 MB   |   18 pages

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The Convicted with Statistics project applies joint probability (conditional and unconditional). Students explore dependent and independent events, as well as questionable interpretations of statistics which could incite convictions in court. Students discuss the failings of expert witnesses for two separate court cases in which statistics nailed down a conviction. The concept of prosecutor's fallacy is introduced. A short introduction to DNA profiles, chromosomes, genotypes, Punnett squares, and allele frequencies. Students calculate the random match probability using the most common allele frequencies for Caucasians, African Americans, and Hispanics. Students explore the difference between the random match probability for a single match v. data dredging (attempting to match one sample to a database of over a million samples). Includes an idea for a classroom project where students must use statistics to argue as defense or prosecuting attorneys.
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18
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Convicted with Statistics
Convicted with Statistics
Convicted with Statistics
Convicted with Statistics