let x1, x2, x3,....... xn be n values of a variable X. If these values are changed to x1+a, x2+a,.... xn +a, where a belongs to R, show that the variance remains unchanged.

Let  ,  i =1, 2, ......, n be the n values of variable u.

Hence, variance remains the same.

  • -21
What are you looking for?