Use the Poisson Distribution to Find the Indicated Probability

question 38

Multiple Choice

Use the Poisson Distribution to find the indicated probability.
-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 4.5 calls per hour. What's the probability that in the next 15 minutes there
Will be 2 or more calls?

• A) 0.9389
• B) 0.1125
• C) 0.6348
• D) 0.3101
• E) 0.2054

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