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Sir pls solve the following.
question image
Asked by rsudipto | 01 Jan, 2019, 10:19: AM
answered-by-expert Expert Answer
mean of n Observation = M
Sum of n Observation = n×M
Sum of (n-4) observation = a
 
Sum of 4 observation = n×M-a
 
hence mean of remaining 4 observation ( n×M-a ) / 4
Answered by Thiyagarajan K | 01 Jan, 2019, 14:01: PM

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