Variance is always independent of the change of
(a) origin but not scale (b) scale only (c) both origin and scale (d) None of the above

• Variance is always independent of change of origin but not from scale. For example:
  V(X+a)=V(X)+V(a)
  =V(X)+0
  =V(X) {since var. of a constant is
  always 0}
  Above, we changed the origin by adding something in variance and we got the same variance again.Now,
  V(aX)=a^2V(X)
  Above, we changed the scale by multiplying something in variance and we didn't get the same thing I.e.same variance.
• 7 years agoHelpfull: Yes(0) No(0)