Consider the following statements : 1. Variance is unaffected by change of origin and change of scale. 2. Coefficient of variance is independent of the unit of observations. Which of the statements given above is/are correct?

• A

  $1$ only
• Correct answer
  B

  $2$ only
• C

  Both $1$ and $2$
• D

  Neither $1$ nor $2$

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