Eye and hair color.
A survey of 1021 school-age children was conducted by randomly selecting children from several large urban elementary schools. Two of the questions concerned eye and hair color. In the survey, the following codes were used:
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Hair Color
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Eye Color
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1= Blond
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1= Blue
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2= Brown
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2= Green
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3= Black
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3= Brown
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4= red
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4= Grey
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5= Other
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5= Other
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The Statistics students analyzing the data were asked to study the relationship between eye and hair color. They produced this plot:
Is their graph appropriate? If so, summarize the findings. If not, explain why not.