Question:medium

Which of the following statements are correct about standard deviation ?
A. It is the root-mean-square deviation from mean.
B. It is always positive.
C. It is dependent of the change of origin.
D. It is independent of the scale of measurement.
Choose the correct answer from the options given below :

Show Hint

Standard Deviation is Shift-Invariant (adding a constant does nothing) but Scale-Variant (multiplying changes it).

Updated On: May 20, 2026

A, B, C only
B, C, D only
A, B only
A, D only

Show Solution

The Correct Option is C

Solution and Explanation

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