<PRE><B>Question 570685</B>
A shipment of 30 MP3 players contains 6 that were defective. 5 MP3 players are selected from this shipment. How many ways can we obtain at least two defective MP3 players?
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2 defective: 6C2*24C3
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3 defective: 6C3*24C2
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4 defective: 6C4*24C1
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5 defective: 6C5
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Ans: add those products.
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Cheers,
Stan H.
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