SOLUTION: a batch consists of 12 defective coils and 88 good ones. Find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced befo
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Question 542161: a batch consists of 12 defective coils and 88 good ones. Find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a batch consists of 12 defective coils and 88 good ones. Find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made.
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Binomial Problem with n = 2 and p(good) = 88/100 = 0.88
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P(x = 2 good) = 2C2(0.88)^2*(0.12)^0 = 0.88^2 = 0.7744
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Cheers,
Stan H.
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