Q. 325.0( 1 Vote )

If the mean observations x1, x2, ..., xn is , then the means of x1 + a, x2 + a, ..., xn + a is
A.

B.

C.

D.

Answer :

Given, mean is ,


and x1, x2, …, xn are n observations.


And we know


The mean or average of observations, is the sum of the values of all the observations divided by the total number of observations.


i.e.



…[1]


And we have another series


x1 + a, x2 + a, …,xn + a


Let the new mean be x




Now, From [1] we have


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses