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The mean of 25 observations was found to be 78.4. But later on it was found that 96 was misread as 69. The correct mean is 

 (a)    76.54                        (b)    78.4                            (c)    79.48                   (d)    81.32



Question ID - 50804 | SaraNextGen Top Answer

The mean of 25 observations was found to be 78.4. But later on it was found that 96 was misread as 69. The correct mean is 

 (a)    76.54                        (b)    78.4                            (c)    79.48                   (d)    81.32

1 Answer
127 votes
Answer Key / Explanation : (c) -

Correct sum =

 Correct mean =

127 votes


127