The average of 10 observations is 40. It was realised later that an observation was misread as 32 in place of 43. Find the correct average.
Given:
The average of 10 observations is 40.
One observation was misread as 32 instead of 43.
Formula Used:
Average =
Solution:
Incorrect sum = 40 × 10 = 400
Correct sum = Incorrect sum – 32 + 43 = 400 – 32 + 43 =411
Correct average =
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishThe average of 10 observations is 40. It was realised later that an observation was misread as 31 in place of 50. Find the correct average.
The average of 10 observations is 40. It was realised later that an observation was misread as 32 in place of 43. Find the correct average.
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