Joseph measure Her used to tie dock boats to a dock. He records the lengths of the ropes and feet and then makes a line plot one dot above 9 1/2 two dots above 10 two dots above 10 1/2 three dots above 11 two dots above 11 1/2 and one dot above 12 Joseph conclude the difference between the longest and the shortest is 2 1/2 feet Martha disagrees and says there’s no difference who is correct use the drop-down menu to show and explain your answer.
Joseph or Martha is correct because you add or subtract the greatest and least links represented by the intervals or dots not the number of intervals or dots at the greatest and least lengths
Joseph is correct. To find the difference between the longest and shortest lengths, you would subtract the smallest length from the largest length. In this case, the longest length is 12 feet and the shortest length is 9 1/2 feet.
12 feet - 9 1/2 feet = 2 1/2 feet
Therefore, Joseph is correct that the difference between the longest and shortest lengths is 2 1/2 feet.