Assuming a 24 Hour Operation in a Warehouse, and an Arrival

question 22

Multiple Choice

Assuming a 24 hour operation in a warehouse, and an arrival following Poisson distribution with mean rate of 36 per day and service (unloading using a single bay) following exponential with a rate of 48 trucks per day, answer the following question. What is the expected number of trucks in the system?

• A) 2.25
• B) 1.5
• C) 2
• D) 1
• E) 3

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Definitions:

Diffusion

The movement of particles from an area of higher concentration to an area of lower concentration until they are evenly distributed.

Ecological Efficiency

The efficiency with which energy is transferred from one trophic level to the next in an ecosystem. Typically only a small percentage of energy is passed on to the next level.

Trophic Level

A step in a food chain or food web, representing the position of organisms in the flow of energy through an ecosystem.

Percentage

A mathematical term representing a fraction of 100, used to describe proportions or ratios.