SOLUTION: The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best reate with 80 % of its flig

Question 807378: The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best reate with 80 % of its flights arriving on time. A test is conducted by randomly selecting 11 Southwest flights and observing whether they arrive on time. (a) Find the probability that exactly 4 flights arrive on time.
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
x=.80, y=.20, n=11
11C4=330
330x^4y^7
=.00173
.
Ed

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