Let the six numbers 
be in A.P. and 
. If the mean of these six numbers is 
and their variance is 
, then 
is equal to
Text Solution
Verified by ExpertsThe correct answer is:
B
Numbers: 
Variance 
means of squares - square mean
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
PHYSICS
SINGLE CORRECT MCQ
A horizontal force F pulls a ring of mass such that θ remains constant …
A ball is spun with angular acceleration where t is in second and α is in rad/s. At , the ball ha…
Two inductors and are connected in parallel and a time varying current i flows as shown. The rati…
A particle of mass 3m is projected from the ground at some angle with horizontal. The horizontal ra…
Find the current through the resistor shown in figure
A parallel plate capacitor of plate area A and plate separation d is charged to potential V and the…