Question 867340: I need guidance to solve this...
The rates of on-time commercial jets are continuously tracked by the U.S Department of Transportation. Recently, southwest Air had the best rate with 80% of its flights arriving on time. A test is conducted by randomly selecting 10 southwest flights and observing whether they arrive on time. Find the probability that at most 3 flight arrive late.
Thanks!
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Recently, southwest Air had the best rate with 80% of its flights arriving on time. A test is conducted by randomly selecting 10 southwest flights and observing whether they arrive on time. Find the probability that at most 3 flight arrive late.
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Binomial Problem with n = 10 and p(on time) = 0.8
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P(0<= x <=3) = binomcdf(10,0.8,3) = 0.0008644..
Cheers,
Stan H.
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