Mean and standard deviation values

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Seven samples were obtained having the values 21, 22, 26, 29, 27, 26 and 24. The mean and standard deviation values are

  • 22.4 and 2.6
  • 25 and 2.2
  • 25 and 2.6
  • 25.6 and 2.2

Reference no: EM131040707

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