Mean of 60 observations is 66. Later, it was found that an observation 24 was wrongly taken as 42. What is the corrected mean?

Mean of 60 observations is 66. Later, it was found that an observation

1.	Mean of 60 observations is 66. Later, it was found that an observation 24 was wrongly taken as 42. What is the corrected mean?
A.	55
B.	65.7
C.	61.2
D.	58.5
Answer» C. 61.2

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Mean of 60 observations is 66. Later, it was found that an observation 24 was wrongly taken as 42. What is the corrected mean?

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