In a certain Precalculus class, there are 18 freshmen and 15 sophomores. Of the 18 freshmen, 10
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In a certain Precalculus class, there are 18 freshmen and 15 sophomores. Of the 18 freshmen, 10 are male, and of the 15 sophomores, 8 are male. Find the probability that a randomly selected student is:
(a) A freshman or female
(b) A sophomore or male
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