Published by:
CGP EDU Academic Team
Published on: August 14, 2026
If both mean and variance of 50 observations 
are equal to 16 and 256 respectively, then mean of 
is
Text Solution
Verified by ExpertsThe correct answer is:
C
: Given, 
(i) and 
Now, new mean 
[Using (i) and (ii)]
──────────────────────────────────────────────────────────────────────────────────────────
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The mean of 5 observations is 4.4 and variance is 8.24. If three of the five observations are 1,2 a…
A player tosses 2 fair coins. He wins if 2 heads appear, if 1 head appears and if no heads appea…
If for some positive , the frequency distribution of the marks obtained by 20 students in a certai…
The variance of 20 observations is 5 . If each observation is multiplied by 2 , then variance of re…