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For 5 observations, the mean is 4.4 and the variance is 8.24. Three of the observations are 1, 2 and 6. What are the other two?

Competition practiceStatistics
  • A5 and 8
  • B3 and 10
  • C6 and 7
  • D4 and 9

Step-by-Step Solution

Other two sum to , so their squares sum to : 4 and 9.
Answer: D) 4 and 9

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