Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Let 
and for some 
. If the mean and variance of the elements of Y are 30 and 750, respectively, then the sum of all possible values of 
is
Text Solution
Verified by ExpertsThe correct answer is:
A
Mean of 
, Variance of 
.
For 
: Mean of 
and Variance of 
.
or 
.
If 
.
If 
.
Sum of all possible values of 
.
──────────────────────────────────────────────────────────────────────────────────────────
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
Let the mean and variance of 8 numbers be and , respectively. Then the mean of 4 numbers is:
If the mean deviation about the median of the numbers is 500 , then is equal to :
If the mean and the variance of the data
are and 19 respectively, then the value of is
Let the mean and variance of 7 observations , be 8 and 16 respectively. Two numbers are chosen fro…
The mean and variance of 10 observations are 9 and 34.2, respectively. If 8 of these observations a…
The mean and variance of a data of 10 observations are 10 and 2, respectively. If an observations …