Cafeteria serving line has a coffee urn from which the customers serve themselves arrivals at the earn fall in the Poseidon distribution at the rate of $2\mathrm{.}0$ per minute and then sells the customers take about $26$ seconds exponentially distributed if the cafeteria stalls an automatic vendor that dispenses a cup of coffee at the constant time of $26$ seconds how many customers would you expect to see at the coffee urn waiting and pouring coffee