percent error!🧐

Front

What is percent error?

Back

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

Front

How do you calculate percent error?

Back

Percent error = |(Estimated Value - Actual Value)| / Actual Value × 100%.

Front

If the estimated attendance at a game is 15,000 and the actual attendance is 12,500, what is the percent error?

Back

20%.

Front

In a science experiment, if the measured length is 12 cm and the actual length is 14.25 cm, what is the percent error?

Back

15.79%.

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

If the estimated deer population is 17,600 and the actual count is 21,300, what is the percent error?

Back

17.4%.

Front

What is the significance of a high percent error?

Back

A high percent error indicates a large discrepancy between the estimated and actual values, suggesting a need for improved measurement or estimation.

Front

What is the formula for calculating the absolute error?

Back

Absolute error = |Estimated Value - Actual Value|.

Front

If a student measures a length as 10 cm but the actual length is 12 cm, what is the absolute error?

Back

2 cm.

Front

Why is it important to calculate percent error in experiments?

Back

Calculating percent error helps assess the accuracy of measurements and the reliability of results.