Statistics And Probability Question 395
Question: If the variance of observations $ x_1,,x_2,,……x_{n} $ is $ {{\sigma }^{2}} $ , then the variance of $ ax_1,,ax_2…….,,ax_{n} $ , a ¹ 0 is
Options:
A) $ {{\sigma }^{2}} $
B) $ a,{{\sigma }^{2}} $
C) $ a^{2}{{\sigma }^{2}} $
D) $ \frac{{{\sigma }^{2}}}{a^{2}} $
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Answer:
Correct Answer: C
Solution:
It is obvious.
BETA
