If E denotes the expectation the variance of a random variable X is d – McqOptions

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1.	If E denotes the expectation the variance of a random variable X is denoted as?
A.	(E(X))2
B.	E(X2)-(E(X))2
C.	E(X2)
D.	2E(X)
Answer» C. E(X2)

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