Question

The mean of 25 observations is 27. If one number is included the mean still remains the same. Find the included observation.

Answer 1

27

Step-by-step explanation:

The mean of 25 observations is 27.

Therefore the total observations

=. 25×27=675

Now,one number is included the mean still remains the same

Therefore now the mean of 26 observations is 27

New total observations =26×27 =702

Therefore the included observation= 702-675 =27

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Answer 2

Answer:

Vl ke saa ki likhisu moi

Step-by-step explanation:

Therefore the answer is 27....