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Find the variance of 5, 12, 3, 18, 6, 8, 2, 10 (use n as the divisor).

Competition practiceStatistics
  • A27.71
  • B4.92
  • C30.25
  • D24.25

Step-by-Step Solution

Mean . Squared deviations: 9, 16, 25, 100, 4, 0, 36, 4, total 194. Variance .
Answer: D) 24.25

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