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The Mizzou bookstore receives a shipment of 30 laptops, 8 of which are defective. 4 of the laptops in the shipment are selected for inspection.

The Mizzou bookstore receives a shipment of 30 laptops, 8 of which are defective. 4 of the laptops in the shipment are selected for inspection. How many possible selections will contain exactly 1 defective laptop?

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1 comment
  • The old test that i have says that the answer is 12320
    • twkorba
    • Nov 15, 2016 at 10:11am

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There are 22 good laptops and 8 defective laptops. Number of selections will contain no defective
calculators is:

7 comments
  • the question you answered is different than the one i posted. it asks if it will exactly only one defective laptop
    • twkorba
    • Nov 15, 2016 at 10:10am
  • yap sorry let me answer if u havent got the correct answer
    • barbarahenry
    • Nov 15, 2016 at 10:12am
  • thanks
    • twkorba
    • Nov 15, 2016 at 10:13am
  • 22C4.8C1=22!/(4!(22-4)!).8!/(1!(8-1)!)=58,520
    • barbarahenry
    • Nov 15, 2016 at 10:17am
  • the correct answer in my answers is 12320
    • twkorba
    • Nov 15, 2016 at 10:18am
  • does that not make any sense as the answer
    • twkorba
    • Nov 15, 2016 at 10:28am
  • even this aint helping i cant solve it any other way. 22C3=1540.
    • barbarahenry
    • Nov 15, 2016 at 10:36am

Determine the  possible selections which will contain exactly 1... View the full answer

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