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Percent Error and Measurement Accuracy
Worksheet
Grade Level
Grade 7
7.30 Percent Error and Measurement Accuracy
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Accepted speed is 32.0 m/s. Radar 1 shows 30.6 m/s; Radar 2 shows 33.8 m/s. Which radar is more accurate AND what is its percent error (nearest tenth)?
A
The second measurement is more accurate; its percent error is 5.6%.
B
The first measurement is more accurate; its percent error is 4.4%.
C
The first measurement is more accurate; its percent error is 5.6%.
D
Both are equally accurate; percent error is 4.4% for each.
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