TALLER EN INGLES EJERCICIO 7

7 - arrivals to a self-service gasoline pump occur in a poisson fashion at a rate of 12 per hour. service time has a distribution which averages 4 minutes with a standard deviation of 1-1/3 minutes. what is the expectet number of vehicles in the system?

	(M/M/∞):(DG/∞/∞)
	ƛ=	12	llegada/hora
	µ=	15	llegada/hora
	RHO	0.8
	Ls	0.8