Question

The Sky Train from the terminal to the rental car and long-term parking center is supposed to arrive every 16 minutes. The waiting times for the train are known to follow a uniform distribution. Find the 40th percentile for the waiting times (in minutes).

Answer 1

6.4 minutes

Explanation:

The minimum waiting time is zero minutes (arriving exactly at the same time as the train), and the maximum waiting time is 16 minutes (arriving exactly after a train has left), therefore the time range is 16 minutes. If the waiting times are uniformly distributed, the 40th percentile is simply given by:

`P = 0.40*16\\P=6.4\ minutes`

The 40th percentile for the waiting times is 6.4 minutes.