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The number of traffic accidents per day on a certain section of highway is thought to be a Poisson ...

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The number of traffic accidents per day on a certain section of highway is thought to be a Poisson ...

The number of traffic accidents per day on a certain section of highway is thought to be a Poisson distribution with a mean of 2.19 accidents. What is the standard deviation of the number of accidents?

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2.19

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4.80

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1.48

▸

3.14

Textbook

Introductory Statistics: A Problem-Solving Approach

Edition: 3^rd

Author: Kokoska

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