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A Grocery Clerk Can Serve 20 Customers Per Hour on Average

question 23

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A grocery clerk can serve 20 customers per hour on average and the service time follows an exponential distribution. What is the probability that a customer's service time is more than 4 minutes?


Definitions:

Tremulousness

A physical condition characterized by involuntary, rhythmic muscle contractions leading to shaking movements in one or more parts of the body; often a symptom of medical conditions or withdrawal.

Perspiration

The process of sweating, a natural mechanism for the body to regulate temperature.

Age Differences

Variations in behavior, cognition, or physical condition that are attributable to differing ages among individuals.

Alcohol Use Disorders

A medical condition characterized by an impaired ability to stop or control alcohol use despite adverse social, occupational, or health consequences.

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