SOLUTION: A company's records indicate that 90% are error free. If 8 records are randomly selected, what is the probability that at least 2 records have no errors?
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Question 509819: A company's records indicate that 90% are error free. If 8 records are randomly selected, what is the probability that at least 2 records have no errors? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A company's records indicate that 90% are error free. If 8 records are randomly selected, what is the probability that at least 2 records have no errors?
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Binomial Problem with n = 8 and p = 0.9
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P(2<= x <=8)
= 1 - P(0<= x <=1)
= 1 - 0.00000073
= 0.9999927
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Cheers,
Stan H.
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