Nikki and Lisa wanted to see if different size wheels made their skateboards go faster. They always used the same course. Their results are shown in the table below.
Results
Wheel Size in
Millimeters (mm)
Tara's Average
Time (seconds)
Lisa's Average
Time (seconds)
50
22
25
60
23
24
Which of the following conclusions is supported by Tara's and Lisa's data?
Wheel size does not affect the speed of a skateboard
Sateboards with small wheels move faster.
Sicateboards with big wheels move faster.
What the wheels are made from has more of an effect than their size.