• Story Name: Mexico City Effect
  • Story Topics: Sports,
  • Datafile Name: Olympic Gold
  • Methods: Scatterplot, Regression, Outlier,
  • Abstract:

    This dataset contains the gold medal performances in the men's long jump, high jump and discus throw for the modern Olympic games from 1900 to 1984. Data are also provided for the 1896 Olympics, but one may wish to omit them from the analyses because that Olympics was quite different from later ones.

    It has been suggested that the Mexico City Olympics in 1968 saw unusually good track and field performances, possibly because of the high altitude. To investigate this question we must establish some expected performance level. Scatterplots of each variable vs year show fall-off of performance with each of the two World Wars of the 20th century. It may, therefore, be best to fit a regression only to recent (post WWII) olympics. The long-jump records in particular show a remarkable performance in 1968.

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