Exhibit 5-15

question 9

Multiple Choice

Exhibit 5-15.A bank manager estimates that an average of two customers enter the tellers' queue every five minutes.Assume that the number of customers that enter the tellers' queue is Poisson-distributed. Refer to Exhibit 5-15.What is the probability that less than two customers enter the queue in a randomly selected five-minute period?

• A)0.1353
• B)0.2707
• C)0.4060
• D)0.6767

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Definitions:

Drugs

Drugs refer to substances that have physiological effects when ingested or otherwise introduced into the body, used for medical purposes or recreation.

Eating Disorder

A range of psychological disorders characterized by abnormal or disturbed eating habits, which can significantly impact one's health and well-being.

Westernized

The process or result of adopting the cultural, economic, or political systems of Western countries, often implying significant changes in social norms, behaviors, or ways of thinking.

Immune

Having resistance or insusceptibility to a particular disease or condition due to the presence of specific antibodies or sensitized white blood cells.