Question

Standard Deviation of n observations $a_{1}, a_{2}, a_{3} ..... a_{n}$ is $\sigma$. Then the standard deviation of the observations $\lambda a_{1},\lambda a_{2}, .... \lambda a_{n}$ is

• A. $\lambda\sigma$
• B. $-\lambda\sigma$
• C. $\left|\lambda \right|\sigma$
• D. $\lambda^{n} \sigma$

Answer 1

Answer: (C)

$\left|\lambda \right|\sigma$

Answer 2

Answer (c) $\left|\lambda \right|\sigma$