SOLUTION: a box contains a total of 50 textbooks, of which 10 are biology books. if you select 2 books at random, determine the probability that neither is a biology book.
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Question 250104: a box contains a total of 50 textbooks, of which 10 are biology books. if you select 2 books at random, determine the probability that neither is a biology book.
You can put this solution on YOUR website! a box contains a total of 50 textbooks, of which 10 are biology books. if you select 2 books at random, determine the probability that neither is a biology book.
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# of ways to succeed: 40C2
# of ways without restriction: 50C2
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P(2 non-biology) = 40C2/50C2 = (40/50)(39/49) = 0.6367
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Cheers,
Stan H.
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