SOLUTION: Help please The rates of on-time flights commercial jets are continuously tracked by the U.S Department of Transformation. Recently, Southwest Air had the best rate with 80% of

Algebra ->  Probability-and-statistics -> SOLUTION: Help please The rates of on-time flights commercial jets are continuously tracked by the U.S Department of Transformation. Recently, Southwest Air had the best rate with 80% of       Log On


   

Question 867587: Help please
The rates of on-time flights commercial jets are continuously tracked by the U.S Department of Transformation. 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 no more than 7 flights arrive on time.
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Answer by stanbon(75887) About Me  (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
Find the probability that no more than 7 flights arrive on time.
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Binomial Problem with n = 10 and p(on time) = 0.8
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P(0<= x <=7) = binomcdf(10,0.8,7) = 0.3222
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Cheers,
Stan H.
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