SOLUTION: Suppose you just received a shipment of eight televisions. Two of the televisions are defective. If two televisions are randomly​ selected, compute the probability that both
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Question 1118660: Suppose you just received a shipment of eight televisions. Two of the televisions are defective. If two televisions are randomly selected, compute the probability that both televisions work. What is the probability at least one of the two televisions does not work? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Suppose you just received a shipment of eight televisions. Two of the televisions are defective. If two televisions are randomly selected, compute the probability that both televisions work. What is the probability at least one of the two televisions does not work?
P(both work) = 6C2/10C2 = (6*5)/(10*9) = 30/(10*9) = 1/3
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P(a random tv is defective:: 2/8 = 1/4
P(a random tv is not defective:: 3/4
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P(>=1 of 2 is defective) = 1 - (3/4)^2 = 1-9/16 = 7/16
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Cheers,
Stan H.
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