Percent Error Practice

Front

What is percent error?

Back

Percent error is a measure of how inaccurate a measurement is, expressed as a percentage of the actual value. It is calculated using the formula: Percent Error = |(Measured Value - Actual Value)| / Actual Value * 100.

Front

How do you calculate percent error?

Back

To calculate percent error, subtract the actual value from the measured value, take the absolute value of the result, divide by the actual value, and then multiply by 100.

Front

If a student measures a length of 12 cm and the actual length is 14.25 cm, what is the percent error?

Back

15.79%

Front

What is the percent error if Griffin thinks a card costs $4.50 but it actually costs $4?

Back

12.5%

Front

How do you convert a decimal to a percent?

Back

To convert a decimal to a percent, multiply the decimal by 100 and add a percent sign.

Front

Convert 0.17 to a percent.

Back

17%

Front

If Zac measures the area of a flower bed as 10 square feet and the actual area is 10.6 square feet, what is his percent error?

Back

6%

Front

What is the formula for calculating percent error?

Back

Percent Error = |(Measured Value - Actual Value)| / Actual Value * 100.

Front

What does a percent error of 0% indicate?

Back

A percent error of 0% indicates that the measured value is exactly equal to the actual value.

Front

What is the significance of a high percent error?

Back

A high percent error indicates a significant discrepancy between the measured value and the actual value, suggesting potential errors in measurement or calculation.