A bicyclist requires a 6 sec gap (headway) in a stream of traffic to cross the stream safely.

A bicyclist requires a 6 sec gap (headway) in a stream of traffic to cross the stream safely. If the vehicles are randomly arriving at the rate of 1200 veh/h, what is the probability of a gap (headway) of 6 sec or greater? (Provide your answer to the third decimal place.)