Q58
If the difference between the expectation of the square of a random variable (E[x2]) and the square of the expectation of the random variable (E[x])2 is denoted by R, then
A.
R = 0
B.
R < 0
C.
R ≥ 0
AnswerD.
R > 0
Answer: Option C
Solution
Answer: Option C
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