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Variability Worksheet


NAME  __________________________________     Due  _________________



  1. First CPI item selected ____________________________________________



    1. The mean __________________



    2. The standard deviation __________________



    3. Your calculation of the CV:













  2. Second CPI item selected ____________________________________________



    1. The mean __________________



    2. The standard deviation __________________



    3. Your calculation of the CV:













    1. Which item had the higher variability for the entire year? By what percentage?










    2. Suggest reasons for the variability of each of the items.