18. A student was interested in the cigarette smoking habits of college students and collected data

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 1.     A student was interested in the cigarette smoking habits of college students and collected data from an unbiased random sample of students. The data is summarized in the following table:

 

 Males who smoke
20
 Males who do not smoke
30
 Females who smoke
25
 Females who do not smoke
50
 

 

What type of chart best represents relative class frequencies?

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Box plot

 

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Pie chart

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Frequency polygon

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Scatter plot
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