Question: Problem 1 (20 points) There are eight students in a class. Five are 19 and three are 21 years old. We select two students at

Problem 1 (20 points) There are eight students in a class.

Problem 1 (20 points) There are eight students in a class. Five are 19 and three are 21 years old. We select two students at random (different students). Let X be the average age of the two selected students. Calculate PMF of X. What is P(19

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