Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Let 
and 
be the two sets of observations. If 
and 
are their respective means and 
is the variance of all the observations in X 
Y, then 
is equal to _________
Text Solution
Verified by ExpertsThe correct answer is:
603
(603)
(31 elements)
(31 elements)
combined mean 
Since 
are in A.P with 31 elements & Common difference1, Same is 
, when written increasing order
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