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It seems that every year we hear about a train derailment. Discussions about the safety of train travel are initiated each time. Suppose there have been nine fatal train derailments over the past 10 years. However, each year, 5 million train trips depart (this does not include subway travel).
-What is the relative frequency of fatal train derailments?

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Use the following information for questions:
 It seems that every year we hear about a train derailment. Discussions about the safety of train travel are initiated each time. Suppose there have been nine fatal train derailments over the past 10 years. However, each year, 5 million train trips depart (this does not include subway travel).
-What is the relative frequency of fatal train derailments?

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The Answer of Use the following information for questions:
 It seems that every year we hear about a train derailment. Discussions about the safety of train travel are initiated each time. Suppose there have been nine fatal train derailments over the past 10 years. However, each year, 5 million train trips depart (this does not include subway travel).
-What is the relative frequency of fatal train derailments?

Use the Following Information for Questions