The probability distribution of the discrete random

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Reference no: EM13613403

The probability distribution of the discrete random variable X is given by the following table.

x	1	2	3	4	5
P(X = x)	0.20	0.38	0.15	0.25	0.02

(a) Calculate the expected value of X.

(b) Calculate the variance

Reference no: EM13613403

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