There is a lift carrying 24 persons and you are one of them. There are total 8 floors in the building. You want to get down at the 7 th Floor. What is the probability that the lift will stop at 7 th Floor without you pressing any lift buttons?

There is a lift carrying 24 persons and you are one of them. There are total 8 floors in the building. You want to get down at the 7 th Floor. What is the probability that the lift will stop at 7 th Floor without you pressing any lift buttons?