The Number of Telephone Calls Coming into a Business' Switchboard

question 68

Short Answer

The number of telephone calls coming into a business' switchboard averages 4 calls per minute. Let x be the number of calls received.
Find P(x = 0).
______________
What is the probability there will be at least one call in a given one-minute period?
______________
What is the probability at least one call will be received in a given two-minute period?
______________

---

Definitions:

President Roosevelt

Refers to either Theodore Roosevelt or Franklin D. Roosevelt, both of whom served as President of the United States and left significant impacts on national policy and history.

Embargo

A government-imposed ban on trade or specific goods with a particular country, often used as a diplomatic or economic sanction.

Lend-Lease Act

A program initiated by the United States during World War II that allowed the U.S. to supply Allied nations with vast amounts of military materiel while avoiding direct involvement in combat.

Military Supplies

Equipment, tools, vehicles, and logistical support materials utilized by armed forces for the purposes of national defense and warfare operations.