The random variable W can take on the values of 0, 1, 2, 3, or 4. The expected value of W  is 2.8. Which of the following is the best interpretation of the expected value of random variable W ?  What is the correct answer A.  A randomly selected value of W must be equal to 2.8. B. The values of W vary by about 2.8 units from the mean of the distribution. C. The mean of a random sample of values selected from the distribution will be 2.8. D. A value of W randomly selected from the distribution will be less than 2.8 units of the mean. E.  For values of W  repeatedly selected at random from the distribution, the mean of the selected values will approach 2.8

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