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The mean of 6 observations is 15. If the observation 8 is removed, find the mean of the remaining 5 observations.

Competition practiceData & Probability
  • A16.4
  • B17
  • C15
  • D16

Step-by-Step Solution

Sum of 6 observations = . After removing 8, sum = 82. New mean = 82 ÷ 5 = 16.4.
Answer: A) 16.4

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