Question: Ellen decides to use a paired comparison method to evaluate the 10 customer service employees in her department. She wants to evaluate them on six

Ellen decides to use a paired comparison method to evaluate the 10 customer service employees in her department. She wants to evaluate them on six different criteria. How many separate one-to-one comparisons will Ellen need to make?

  • 90
  • 180
  • 270
  • 45

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