Question: The probability distribution of a discrete random variable X is shown below: 1 3 4 P(X = x) 0.25 %3D 0.20 0.25 0.05 0.25

The probability distribution of a discrete random variable X is shown below:

The probability distribution of a discrete random variable X is shown below: 1 3 4 P(X = x) 0.25 %3D 0.20 0.25 0.05 0.25 The expected value of X is calculated to be E(X) = 2.85. What is the variance of X? O 2.11 2.19 2.27 2.15 2.23

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