A Post Office Has a Single Line for Customers Waiting

question 141

Multiple Choice

A post office has a single line for customers waiting for the next available postal clerk.There are two postal clerks who work at the same rate.The arrival rate of customers follows a Poisson distribution,while the service time follows an exponential distribution.The average arrival rate is three per minute and the average service rate is two per minute for each of the two clerks.What proportion of time are both clerks idle?

• A)0.643
• B)0.250
• C)0.750
• D)0.143
• E)None of the above

Understand the sociological reasons for health inequalities, including the disparities caused by economic status.

Recognize the influence of gender on health inequality and the biases present in health and healthcare.

Assess the challenges to traditional medicine, including holistic and alternative medicine, and the role of patient activism.

Identify the country with the highest life expectancy in a given year.

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Definitions:

Economizing Problem

The need to make choices about how to best use limited resources to satisfy unlimited wants.

Limited Resources

The economic principle that the available resources (such as time, money, and raw materials) are insufficient to satisfy all wants and needs.

Unlimited Wants

The economic concept that human desires and needs are infinite and vary in intensity, contrasting with limited available resources.

Normative

In economics and philosophy, refers to statements or propositions that express values, ethics, or moral prescriptions, indicating how things ought to be.