Calculate the descriptive statistics( mean and standard deviation) for the average number of customers( waiting and served) at the window queue.

Mcdonald's (located across the street from the McNeese campus) is analyzing its two-step drive- through process for a given time period. The process is simple: a car arrives and waits in one of two order queues, then places and order and proceeds to wait in a single window queue before receiving their food, and exiting the system. Though not their busiest period, Mcdonalds has provided lis with an arrival rate of X - 3 customers per minute and the following metrics: Order queue Window queue Number of servers two M/M/1 queues one M/M/1 queue Arrival rate X/2 per minute A per minute Service time ET = 0.5 minutes ET - 0.2 minutes