Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Consider a set of 
numbers having variance 4 In this set, the mean of first 
numbers is 6 and the mean of the remaining numbers is 3. A new set is constructed by adding 1 into each of first 2 n numbers, and subtracting 1 from each of the remaining 
numbers. If the variance of the new set is 
, then 
is equal to
Text Solution
Verified by ExpertsThe correct answer is:
68.00
(68.00) Let number be 
Now, distribution becomes
, 
Variance
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