Joseph measures the ropes used to tie boats to a dock. He records the lengths of the ropes in feet and then makes a line plot.

A line plot named

Joseph concludes that the difference between the longest and shortest lengths is
2
1
2
feet.
Marta disagrees and says that there is no difference. Who is correct?
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is correct because you
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the greatest and least lengths represented by the
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, not the number of
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at the greatest and least lengths.