13 After evaluating student response to a question about a case used in class, the instructor constructed

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13 After evaluating student response to a question about a case used in class, the instructor constructed the following probability distribution:

RESPONSE RANDOM VARIABLE, X PROBABILITY Excellent 5 0.05 Good 4 0.25 Average 3 0.40 Fair 2 0.15 Poor 1 0.15 What kind of probability distribution is it?

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