Percent Error Practice Worksheet
This worksheet provides practice problems on calculating percent error for various measurements and estimations, suitable for Grade 11 math students.
Includes
Standards
Percent Error Practice
Name:
Date:
Score:
Read each problem carefully and calculate the percent error. Round your answers to two decimal places where appropriate.
1. Percent error is calculated using the formula: (|Observed Value - Actual Value| / ) * 100%.
2. A low percent error indicates that the observed value is to the actual value.
3. A student measures the length of a desk to be 152 cm. The actual length of the desk is 150 cm. Calculate the percent error.
4. A scientist predicts that a reaction will produce 25 grams of product. After the experiment, 22 grams of product are obtained. What is the percent error?
3%
12%
13.64%
10.71%
5. A manufacturer states that a product weighs 500 grams. A quality control check reveals that a sample weighs 508 grams. What is the percent error in the measurement?
6. An economist estimates the annual inflation rate to be 3.5%. The actual inflation rate for the year was 3.2%. Calculate the percent error in the economist's estimate.
7. A negative percent error indicates that the observed value is greater than the actual value.
True
False
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