In a waiting line situation, arrivals occur around the clock at a rate of six per day, and the service occurs at one every three hours. Assume the Poisson and exponential distributions. Round off...

In a waiting line situation, arrivals occur around the clock at a rate of six per day, and the service occurs at one every three hours. Assume the Poisson and exponential distributions. Round off answers to the nearest four decimal places if the decimals are nonterminating. Find the probability that there is one person waiting. Use per day as a basis.