A mathematics class is composed of 15 freshmen, 7 sophomores, and 4 juniors. Three of the freshmen, two of the sophomores, and one junior receive A grades in the course. If a student is selected at random from the class, find the probability that the student is each of the following. (Enter your probabilities as fractions.) (a) an A student (b) an A freshman student (c) a sophomore

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Finite Mathematics
A mathematics class is composed of 15 freshmen, 7 sophomores, and 4 juniors. Three of the freshmen, two of the sophomores, and one junior receive A grades in the course. If a
student is selected at random from the class, find the probability that the student is each of the following. (Enter your probabilities as fractions.)
(a) an A student
(b) an A freshman student
(c) a sophomore
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A mathematics class is composed of 15 freshmen, 7 sophomores, and 4 juniors. Three of the freshmen, two of the sophomores, and one junior receive A grades in the course. If a student is selected at random from the class, find the probability that the student is each of the following. (Enter your probabilities as fractions.) (a) an A student (b) an A freshman student (c) a sophomore

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