Sunita's Job Is to Provide Technical Support to Computer Users

question 77

Multiple Choice

Sunita's job is to provide technical support to computer users.Suppose the arrival of calls can be modeled by a Poisson distribution with a mean of 4.9 calls per hour.What is the probability that in the next 30 minutes there will be 2 or more calls?

• A)0.7886
• B)0.2590
• C)0.0894
• D)0.7023
• E)0.9561

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Definitions:

Critical Thinking

The process of actively analyzing, synthesizing, and evaluating information gathered from observation, experience, or communication.

Psychologists' Assumptions

The underlying beliefs or theories that psychologists hold about human behavior and mental processes.

Operational Definition

A clear, concise detailed definition of a measure. The requirements for something to be defined for scientific study.

Independent Variable

The experimental factor that is manipulated; the variable whose effect is being studied.