Compute Probabilities of a Poisson Random Variable

question 137

Multiple Choice

Compute Probabilities of a Poisson Random Variable
-A help desk receives an average of four calls per hour on its toll-free number. For any given hour, find the probability that it will receive exactly seven calls. Use the Poisson distribution.

• A) 0.0596
• B) 0.0030
• C) 522.0448
• D) 0.0087

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Definitions:

Instincts

Innate, typically fixed patterns of behavior in animals in response to certain stimuli.

Emotions

Affective states that are experienced as a response to internal or external events and are associated with physiological, behavioral, and cognitive changes.

Primary Drives

Basic physiological needs such as hunger, thirst, and sleep, which motivate behavior to ensure survival.

Stimuli

External factors or events that elicit a physiological or psychological response in an organism.