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.
9 1/2 has one dot
10 has two dots
10 1/2 has two dots
11 has three dots
11 1/2 has two dots
12 has one dot
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?
1 answer
Marta is correct. The longest length is 12 feet and the shortest length is 9 1/2 feet. The difference is 12 - 9 1/2 = 2 1/2 feet. So, there is indeed a difference of 2 1/2 feet between the longest and shortest lengths.