Statistics And Probability Question 333
Question: If each observation of a raw data whose variance is $ {{\sigma }^{2}} $ , is multiplied by l, then the variance of the new set is
[Pb. CET 1993]
Options:
A) $ {{\sigma }^{2}} $
B) $ {{\lambda }^{2}}{{\sigma }^{2}} $
C) $ \lambda +{{\sigma }^{2}} $
D) $ {{\lambda }^{2}}+{{\sigma }^{2}} $
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Answer:
Correct Answer: B
Solution:
It is obvious.
BETA
