The Number X of People Entering the Intensive Care Unit

question 21

Essay

The number x of people entering the intensive care unit at a particular hospital on any one day has a Poisson probability distribution with mean equal to four persons per day.
What is the probability that the number of people entering the intensive care unit on a particular day is two?
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What is the probability that the number of people entering the intensive care unit on a particular day is Less than or equal to two?
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Is it likely that x will exceed ten?
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Explain.
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Definitions:

Direct Method

A method of preparing the cash flow statement in which actual cash receipts and payments are reported directly for operating activities, without adjusting net income.

Service Department Costs

Expenses associated with departments that do not directly produce goods but provide essential support services to production departments.

Operating Departments

Departments within an organization that are directly involved in producing the company's goods or delivering services, as opposed to administrative departments.

Process Costing

A costing method used in industries where production is continuous and units are identical, assigning costs to units of product based on the process they go through.