Mathematics, 16.03.2022 14:00 marz2479

Let X = the score out of 3 points on a randomly selected pop quiz in a statistics class. The table gives the probability distribution of X. Value 0123 Probability 0.11 0.25 0.39 0.25
Calculate and interpret the expected value of X.
a. The average score will be about 1.78.
b. It a test is randomly selected, the average score will be about 1.78.
c. If many, many tests are randomly selected, their average score will be about 1.78.
d. None of these is correct.

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