keeper97 keeper97

30-07-2017
Mathematics

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Zooey predicts the movie will be 90 minutes long. If the movie actually is 102 minutes long, what is Zooey's percent error? Round your answer to the nearest tenth of a percent.

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texaschic101 texaschic101

30-07-2017

102 - 90 = 12
12 / 102 = 0.1176 = 11.76 rounds to 11.8% <==

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30-07-2017

%error=100(prediction-actual)/actual

%error=100(90-102)/102

%error≈ -11.8%

Now the negative sign indicates that she underestimated the length of he movie by 11.8%, but technically the percent error is an absolute value so it is just 11.8% error.

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