Question 20.3

20.3 Expected value. Which of the following is true of the expected value of a random phenomenon?

  1. (a) It must be one of the possible outcomes.

  2. (b) It cannot be one of the possible outcomes, because it is an average.

  3. (c) It can only be computed if the random phenomenon has numerical values.

  4. (d) None of the above is true.