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Suppose that a certain college class contains48 students. Of these,28 are freshmen,25 are biology majors, and9 are neither. A student is selected at random from

Suppose that a certain college class contains48 students. Of these,28 are freshmen,25 are biology majors, and9 are neither. A student is selected at random from the class.

(a) What is theprobabilitythat the student is both a freshman and a biology major?

(b) Given that the student selected is a biology major, what is the probability that he is also a freshman?

Write responses as fractions.

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