SOLUTION: Suppose that a certain college class contains students. Of these, are freshmen, are psychology majors, and are neither. A student is selected at random from the class.
(a)
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(a)
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Question 137563: Suppose that a certain college class contains students. Of these, are freshmen, are psychology majors, and are neither. A student is selected at random from the class.
(a) What is the probability that the student is both a freshman and a psychology major?
(b) Given that the student selected is a freshman, what is the probability that he is also a psychology major?
Write your responses as fractions. Answer by stanbon(75887) (Show Source):
(