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<p><strong>Defective Units</strong></p> <p>A shipment of #a microwave ovens contains #b defective units. In how many ways can a restaurant buy three of these units and recieve:</p> <ol> <li>no defective units?<br />{2:SA:\*~=\#sola}<br /><br /></li> <li>one defective unit?<br />{2:SA:\*~=\#solb}<br /><br /></li> <li>at least two nondefective units?<br />{2:SA:\*~=\#solc}<br /><br /></li> <li>What is the probability of the restaurant buying at least two defective units?<br />{2:SA:\*~=\#sold}</li> </ol>
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Tuesday, 5 November 2013, 10:16 AM
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