Answer:
Percentage of observed passengers with a frequent flyer account = 33% approximately.
Explanation:
It is given that 1/3 of the next 3000 passengers have a frequent flyer account.
So,
= 1000 passengers have a frequent flyer account.
It is also given that we already have 110 passengers with frequent flyer accounts from the last question.
So, total number of passengers who have flyer account = 1000 + 110 = 1110
It is given that the total number of passengers = 3339
Hence, the percentage of passengers with a flyer account =

= 33% approximately