Hi, i have the following question that i cant solve for days:
A small commuter airline flies plane that can seat up to eight passengers. The airline has determined that the probability that a ticketed passenger will not show up for a flight is 0.2. For each flight, the airline sells tickets to the first ten people placing orders. The probability distribution for the number of tickets sold per flight is shown in the accompanying table. For what proportion of the airline's flights does the number of ticketed passengers showing up exceeds the number of available seats? (Assume independence between number of tickets sold and that a ticketed passenger will show up).
Number of tickets 6 7 8 9 10
Probability 0.30 0.30 0.25 0.10 0.05
Thanks a lot for anyone who can help me through this problem!!!!!