Question

Mark and Matthew signed up to walk in a 5K walk/run race. They predict it will take them 60 minutes to complete the race. Mark and Matthew finished the race in 53 minutes. What is the percent error? Round to the nearest tenth. (1 point)

Answer 1

To find the percent error, we need to first find the absolute error, which is the difference between the predicted time and the actual time:

Absolute error = |predicted time - actual time|
= |60 - 53|
= 7

Then, we divide the absolute error by the predicted time, and multiply by 100 to find the percent error:

Percent error = (absolute error / predicted time) * 100
= (7 / 60) * 100
= 11.67%

Rounded to the nearest tenth, the percent error is 11.7%.