Question 313052
An airline estimates that 89% of people booked on their flights actually show up. 
a) If the airline books 47 people on a flight for which maximum number is 45, what is the probability that the number of people who show up will exceed the capacity of the plane?
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Binomial Problem with n=47, p = 0.89
P(46<= x <=47) = 1-binomcdf(47,0.89,45) = 0.0285
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b) Is this probability low enough so that overbooking is not a real concern for passengers?
I'll leave that decision to you.
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Cheers,
Stan H.