Percent Error

Front

What is Percent Error?

Back

Percent Error is a measure of how inaccurate a measurement is, compared to the true value, expressed as a percentage.

Front

How do you calculate Percent Error?

Back

Percent Error = |(Estimated Value - Actual Value)| / |Actual Value| x 100%.

Front

If Tyler estimated his cat's weight to be 10 pounds and the actual weight is 13.75 pounds, what is the percent error?

Back

27.2%.

Front

If Mrs. Costello estimated her grocery spending to be $120 and actually spent $94, what is the percent error?

Back

27.6%.

Front

What is the percent error if Petey thinks a shirt costs $60 but it actually costs $50?

Back

20%.

Front

If Jon filled a pitcher with 8 fluid oz of lemonade and the actual measurement is 10 fluid oz, what is the percent error?

Back

20%.

Front

Declan thinks a card costs $4.50, but it actually costs $4. What is the percent error?

Back

12.5%.

Front

What does a percent error of 0% indicate?

Back

A percent error of 0% indicates that the estimated 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 difference between the estimated and actual values, suggesting a poor estimation.

Front

What is the significance of a low percent error?

Back

A low percent error indicates that the estimated value is close to the actual value, suggesting a good estimation.