sex-degrees

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Slide 1

sexgraph.1 Graph Theory & Sex

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sexgraph.2 Sex in America: Men more Promiscuous? Univ Chicago, The Social Organization of Sexuality, 1994: men have 74% more women partners than women have men NBC News, American Sex Survey, 2004: men have 233% more women partners U.S. National Center for Health Statistics study, 2007: men have 175% more women partners

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sexgraph.3 Sex in America: Men more Promiscuous? Studies claim different %’s but agree that men average many more partners than women. Graph theory shows this is nonsense

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sexgraph.4 M F Sex Partner Graph

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sexgraph.5 Counting pairs of partners divide by both sides by |M|

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sexgraph.6 Counting pairs of partners Average number of partners for Men

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sexgraph.7 Counting pairs of partners Average number of partners for Men

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sexgraph.8 Counting pairs of partners Average number of partners for Men

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sexgraph.9 M F Sex Partner Graph

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sexgraph.10 Counting pairs of partners Average number of partners for Men

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sexgraph.11 Counting pairs of partners Average number of partners for Women

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sexgraph.12 Counting pairs of partners Average number of partners for Women

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sexgraph.13 Counting pairs of partners Average number of partners for Women

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sexgraph.14 Average number of partners

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sexgraph.15 Averages differ solely by ratio of Females to Males. No big difference Nothing to do with promiscuity Average number of partners

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Why are surveys wrong? Maybe people are lying: Males exaggerate? Females deny? Maybe Males have partners outside the study sexgraph.16

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Check out MIT 6.042J/18.062J Mathematics for Computer Science http://courses.csail.mit.edu/6.042 sexgraph.17

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