A random variable X can take the values -1, 0 and 1 with respective pr – McqOptions

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1.	A random variable X can take the values -1, 0 and 1 with respective probabilities 0.2, 0.5 and 0.3. The expected value of X is:
A.	0.3
B.	0.5
C.	0.2
D.	0.1
Answer» E.

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