Mark and Mattew 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
%
The percent error can be calculated using the formula:
Percent error = ((observed value - predicted value) / predicted value) * 100.
In this case, the observed value is 53 minutes and the predicted value is 60 minutes.
Percent error = ((53 - 60) / 60) * 100
= (-7 / 60) * 100
≈ -11.67%
Rounded to the nearest tenth, the percent error is approximately -11.7%.