SOLUTION: Find the probability of selecting 5 math books and 4 history books from a stack that contains 6 math books and 4 history books if the books are selected at random.
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-> SOLUTION: Find the probability of selecting 5 math books and 4 history books from a stack that contains 6 math books and 4 history books if the books are selected at random.
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Question 386764: Find the probability of selecting 5 math books and 4 history books from a stack that contains 6 math books and 4 history books if the books are selected at random. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Find the probability of selecting 5 math books and 4 history books from a stack that contains 6 math books and 4 history books if the books are selected at random.
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# of ways to succeed:
# of ways to select 5 math: 6C5 = 6
# of ways to select 4 hist: 4C4 = 1
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# of ways to succeed: 6*1 = 6
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# of ways to select 9 books randomly: 10C9 = 10
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P(selecting 5 math and 4 hist) = 6/10 = 3/5
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Cheers,
Stan H.
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