SOLUTION: in a shipment of 11 CD players, two are defective. Find the probability that a sample of 2 CD players will not contain any that are defective.
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Question 278601: in a shipment of 11 CD players, two are defective. Find the probability that a sample of 2 CD players will not contain any that are defective. Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! 2/11 probability a player will be defective
let a=2/11, b=9/11
(a+b)^2=a^2+2ab+b^2
probability none defective = b^2 = (9/11)^2 = 81/121 = .6694
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Ed
