if the mean of 5 observations x,50,54,46,50 is 52 then the value of x is
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Answer:
Number of observations= 75
Mean=27
Sum of observations=75×27
Wrong value=43, Correct value=53
∴Correct sum=75×27−43+53
=75×27+10
Correct mean=
75
75×27+10
=27+
75
10
=27.133
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