SOLUTION: You just received a shiftpment of 11 mp3 players. One mp3 player is defective. You will accept the shipment if two randomly selected mp3 players work. Whay is the probability that

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Question 1112303: You just received a shiftpment of 11 mp3 players. One mp3 player is defective. You will accept the shipment if two randomly selected mp3 players work. Whay is the probability that you will accept the shipment?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
11C2 or 55 different ways to choose 2 from 11
10C2 are the number of ways to choose two from the 10 good ones, and that is 45
45/55 or 9/11 probability that you will accept the shipment.