A small regional carrier accepted 23 reservations for a
particular flight with 19 seats. 18 reservations went to regular
customers who will arrive for the flight. Each of the remaining
passengers will arrive for the flight with a 45% chance,
independently of each other.
Find the probability that overbooking
occurs.
Find the probability that the flight has empty
seats.
here this is binomial with parameter n=5 and p=0.45 |
1)
probability that overbooking occurs =P(2 or more will arrive) =1-P(X<=1)
=1-(P(X=0)+P(X=1))
=1-((5C0)*(0.45)^0*(0.55)^5+(5C1)*(0.45)^1*(0.55)^4)
=1-0.2562 =0.7438
2) probability that the flight has empty seats =P(none of 5 will arrive) =(1-0.45)^5=0.0503
A small regional carrier accepted 23 reservations for a particular flight with 19 seats. 18 reservations...
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