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Take the deviations of 5, 9, 12, 14, 20 from their arithmetic mean. What is the sum of these deviations?

Competition practiceStatistics
  • A12
  • B60
  • C0
  • D22

Step-by-Step Solution

The mean is 12, and the sum of deviations from the arithmetic mean is always zero: .
Answer: C) 0

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