Answer:
expect the customer to wait = 6.74 sec
1 car would expect to see in the system.
Explanation:
given data
arrive rate λ = 300 per hour
verify the debit card u = 1 card per 5 second = 720 card per hour
solution
L(q) = 300² ÷ ( 2 × 720 (730-300) )
L(q) = 0.1453
L(q) = 2.0833
and
L(s) = 0.1453 + 300/720
L(s) = 0.5619 W(s)
so
expect the customer to wait = 0.5619 ÷ 300
expect the customer to wait =0.001873
expect the customer to wait = 6.74 sec
and
L(s) 0.5619 = 1 cars
so 1 car would expect to see in the system.
