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A Sandwich Shop near Campus Has a Special Counter, Open

question 27

Essay

A sandwich shop near campus has a special counter, open from 11 am to 1 pm, which is used exclusively for selling pre-made sandwiches.This is much faster than making sandwiches to order at lunch time.The clerk can handle a customer in about one minute.Customers arrive at a rate of 40 per hour on average.
a.How long (in minutes) does a customer have to wait?
b.What percentage of the time is the employee working?
c.What is the average number of customers waiting in line?
d.What is the probability of there being 3 or more customers in the system?


Definitions:

Nuisance

An act, condition, or thing that is annoying, harmful, or inconvenient to a community or individual.

Trespass

An unlawful intrusion or invasion of a person's property or rights, which can involve land, personal property, or personal rights.

FIFRA

The Federal Insecticide, Fungicide, and Rodenticide Act, U.S. legislation that regulates the distribution, sale, and use of pesticides to protect human health and the environment.

Registered

Denotes that an object, document, transaction, or security has been formally logged or recorded with the appropriate authority or agency.

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