I am currently working on a self-study question relating to exponential distribution. I made an attempt but was not able to make sense of the answer. When I looked up the reference guide, it offered the answer at 0.1068.
Appreciate any guidance and advice on where has my method gone wrong. Many thanks.
When a truck arrives at a checkpoint, each truck will be checked by customs agents. The times are exponentially distributed with a service rate of 10 trucks per hour. What is the probability that a truck requires less than 15 minutes but more than 10 minutes to be checked?