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7) The ages of 5 students in a class are: 22, 20, 22, 24, 19. There is an equal probability of selecting one of them

7) The ages of 5 students in a class are: 22, 20, 22, 24, 19. There is an equal probability of selecting one of them randomly. Determine the expected age of a student to be selected randomly. (Type the numerical answer rounded to the first decimal.)

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