complete details′ of items in, waiting line are known

arrival and waiting times are known and can be grouped to form a waiting line model

all variables and constants are known and form a linear equation

the laws governing arrivals, service times, and the order in which the arriving units are taken into source are known

sales

inspection time

waiting time

production time

the average service rate Hess than the average arrival rate

output rate is linearly proportional to input

output rate is constant and the input varies in a random manner

all of the above

that can′t be analysed mathematically

involving multi-stage queuing

to verify mathematical results

all of the above

minimum value

maximum value

average value

middle value