Proof your knowledge!


  1. Two vendors on Amazon sell the same product at the same price. Vendor A has 90 positive and 10 negative evaluations. Vendor B has 2 positive evaluations.

    Which vendor would you choose? Please shortly justify your recommendation.
  2. Please visualize the following cross table:
    Gold Medals Great Britain Brazil Rest
    Beijing 2008 19 3 280
    London 2012 29 3 270
    Rio 2016 27 7 273


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