The forward area of an aircraft has 2 lavatories. On average, passengers arrive to the lavatory every 10 minutes. If both lavatories are in use, the passenger is sent away there is no waiting in the forward area of the aircraft. On average, a passengers length of stay is 2 minutes, with a standard deviation of 2 minutes. What is the probability a passenger finds both lavatories in use and is sent away? (report your answer as a decimal to 4 decimal places).