In a Single-Server Queuing System, If 12 Customers Arrive Per

question 115

Multiple Choice

In a single-server queuing system, if 12 customers arrive per hour and 30 customers are served per hour, what is the probability that there are no customers in the system?

• A) 0.75
• B) 0.60
• C) 0.40
• D) 0.2 5

---

Definitions:

Hydraulic Gradient

The slope of the water table or potentiometric surface, indicating the direction and rate of groundwater flow.

Limestone Cave

A natural underground space formed by the dissolution of limestone rock by water.

Water Table

The level below which the ground is saturated with water, marking the boundary between the soil surface and groundwater.

Stalactites

Icicle-shaped formations that hang from the ceiling of a cave, formed by the deposition of minerals from water dripping down.