Consider a Single-Line, Single-Server Waiting Line System

question 92

Multiple Choice

Consider a single-line, single-server waiting line system. The arrival rate λ is 80 people per hour, and the service rate μ is 120 people per hour. What is the probability of having 3 or more units in the system?

• A) 29.63%
• B) 33.33%
• C) 0.00%
• D) 9.88%
• E) 66.67%

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Definitions:

Variance

The average of the squared differences from the Mean, a statistical measurement of the spread between numbers in a data set.

Computational Formula

A formula used to compute statistical measures that often simplifies the arithmetic process.

Variance

A measure of the dispersion or how spread out numbers are in a dataset.

Interquartile Range

A measure of statistical dispersion, representing the difference between the 25th and 75th percentiles of a dataset.