Mean of six readings 1.2, 2.3, 4.35, 5.46, 7.6, 8.5 of micrometer in precise measurement is

Mean of six readings 1.2, 2.3, 4.35, 5.46, 7.6, 8.5 of micrometer in precise measurement is
  • A. 4
  • B. 3.991
  • C. 4.12
  • D. 3.976
  • Correct Answer: Option B
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