A

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Q. The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is

  • (A) 35
  • (B) 36.5
  • (C) 40
  • (D) 42
  • Correct Answer - Option(B)
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  • Filed under category Math
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Explanation by: Admin
Correct Sum = (36 * 50 + 48 - 23) = 1825.
Correct mean = = 1825/50 = 36.5

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