Arithmetic mean of nine observations is calculated as 38. But in doing so, mistakenly
the observation 27 is taken instead of 72. Find the actual mean of the data.
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Answered by
2
Answer:
Mean=
9
Sumofobservations
38×9=Sum
342=Sum
As 27 is mistaken for 72, the correct sum of 38 observations will be,
342−72+27=297
The actual mean will be,
Mean=
9
297
=33
Answered by
1
Answer:
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