The mean of 9 observations was found to be 35 .Later on it was discovered that an
observation was misread as 18 in place of 81. Find the correct mean.
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Answered by
5
Answer:
Incorrect mean of 9 observations =35
Incorrect sum of observations =35×9=315
Since, 81 is misread as 18.
So, correct sum of observations
=315−18+81=378
∴ Correct mean =
9
378
=42
Answered by
0
Answer:
48 will be the answer of question
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