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 Zed estimated 350 chips but found 210, what is the Percent Error?

Back

67%.

Front

What is the Percent Error if the measured length is 12 cm and the actual length is 14.25 cm?

Back

15.79%.

Front

What does a low Percent Error indicate?

Back

A low Percent Error indicates that the estimated value is close to the actual value.

Front

What is Absolute Error?

Back

Absolute Error is the difference between the estimated value and the actual value.

Front

If the actual count of students is between 1380 and 1402, what is the maximum Absolute Error?

Back

22.

Front

What does it mean if data is described as 'precise'?

Back

Data is precise if the measurements are close to each other, regardless of how close they are to the actual value.

Front

What does it mean if data is described as 'accurate'?

Back

Data is accurate if it is close to the actual value.

Front

What is the difference between accuracy and precision?

Back

Accuracy refers to how close a measurement is to the true value, while precision refers to how consistent the measurements are with each other.