A set of $n$ values $x_1 x_2, \ldots, x_n$ has standard deviation $\sigma$. What is the standard deviation of $n$ values $x_1+k, x_2+k$, $\ldots, x_n+k$ ?

• A

  $\sigma$
• Correct answer
  B

  $\sigma+\kappa$
• C

  $\sigma-\kappa$
• D

  $\kappa \sigma$

Hence, the correct answer is option: 'B'.