The mean of 10 observations is 16. On checking it was found that 2 obs – McqOptions

MCQOPTIONS

1.	The mean of 10 observations is 16. On checking it was found that 2 observations were wrongly copied as 4 and 6 in place of 8 and 7. The correct mean is -
A.	15.5
B.	16
C.	16.5
D.	17
Answer» D. 17

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