Question: A random variable X can take on three possible values: 0, 8, or 20. Each of these values is associated with the following probabilities:

A random variable X can take on three possible values: 0, 8, or 20. Each of these values is associated with the following probabilities: P(X = 0) = 0.25, P (X = 8) = 0.25, and P(X=20)=0.5. What is the expected value of X?

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