Leaks occur in a pipeline at a mean rate of 1 leak per 1,000 meters. In a 2,500-meter section of pipe,(a) Using the Poisson approximation to the binomial, what is the probability of no leaks?

Atrain is travelling from new orleans to memphis at a constant spend of 79 miles per hour. new orleans and memphis are 395.1 miles apart. how long will the train be to reach memphis round to the nearest tenth