Question 870330: A company ships cellphones in cartons of 10. In each carton, they estimate a 4% chance that one of the phones will need to be sent back for minor repairs. What is the probability that in a carton, at least two phones will need repair?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A company ships cellphones in cartons of 10. In each carton, they estimate a 4% chance that one of the phones will need to be sent back for minor repairs. What is the probability that in a carton, at least two phones will need repair?
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Binomial Problem with n = 10 and p(defect) =0.04
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P(2<= x <=10) = 1 - P(0<= x <=1) = 1 - binomcdf(10,0.04,1) = 0.0502
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Cheers,
Stan H.
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