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Use the following information to answer the next two exercises: Table 1.38contains data on hurricanes that have made direct hits on the U.S. Between 1851and 2004. A hurricane is given a strength category rating based on the minimum wind speed generated by the storm.

What is the relative frequency of direct hits that were AT MOST a category 3 storm?

a. 0.3480

b. 0.9231

c. 0.2601

d. 0.3370

Short Answer

Expert verified

The relative frequency of direct hits that were at most a category 3storm is0.9231

Step by step solution

01

Step 1: 

The number of direct hits for 1,2and 3categories storm are 109,72,and 71respectively and the total number of direct hits is273

02

Explanation

Relativefrequency=Numberofdirecthitsfor3hurricanesTotalnumberofdirecthits=109+72+71273=0.9231

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Most popular questions from this chapter

Use the following data to answer the next five exercises: Two researchers are gathering data on hours of video games played by school-aged children and young adults. They each randomly sample different groups of 150 students from the same school. They collect the following data.

As part of a way to reward students for participating in the survey, the researchers gave each student a gift card to a video game store. Would this affect the data if students knew about the award before the study?

Name the sampling method used in each of the following situations:

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Determine what the key terms refer to in the following study. We want to know the average (mean) amount of money spent on school uniforms each year by families with children at Knoll Academy. We randomly survey 100 families with children in the school. Three of the families spent \(65, \)75, and $95, respectively.

Use the following data to answer the next five exercises: Two researchers are gathering data on hours of video games played by school-aged children and young adults. They each randomly sample different groups of 150 students from the same school. They collect the following data.

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