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(2.60) If 4 books are picked at random from a shelf containing 6 novels, 4 books...

(2.60) If 4 books are picked at random from a shelf containing 6 novels, 4 books of poems, and 2 dictionaries, what is the probability that a) exactly one book of poems is selected? b) 2 novels, 1 dictionary, and 1 book of poems are selected?

Math   Statistics-And-Probability   
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Answer #1

Solution: We are given that there are:

6 novel books.

4 poem books.

2 dictionary book.

a) The probability of one book of poems is selected is:

Therefore, the probability of exactly one book of poems is selected is 0.4525

b) The probability of 2 novels, 1 dictionary and 1 book of poems are selected is:

Therefore, the probability of 2 novels, 1 dictionary, and 1 book of poems are selected is 0.2424

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