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Q: In an examination, the mean of scores of the 36 students was 72.50. On revising the points, it was found that a student mark was written 65 by mistake instead of 56. Then find the correct mean?
  • A. 71.50
  • B. 72.25
  • C. 72
  • D. 73
Correct Answer: Option B -
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Explanations:

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