Question: If 3 books are picked at random from a shelf containing 5 novels, 3 books of poems, and a dictionary, what is the probability that

If 3 books are picked at random from a shelf containing 5 novels, 3 books of poems, and a dictionary, what is the probability that
(a) The dictionary is selected?
(b) 2 novels and 1 book of poems are selected?

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