Percent Error

Front

What is Percent Error?

Back

Percent Error is a measure of how inaccurate a measurement is, compared to the true value. It is calculated using the formula: Percent Error = |(Estimated Value - Actual Value)| / |Actual Value| x 100%.

Front

How do you calculate Percent Change?

Back

Percent Change is calculated using the formula: Percent Change = (New Value - Old Value) / |Old Value| x 100%.

Front

If Mrs. Clendenning had 27 students last year and 30 this year, what is the percent change?

Back

11%.

Front

What is the formula for calculating Percent Error?

Back

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

Front

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

Back

15.79%.

Front

What is the maximum percent error if the actual count of students is between 1380 and 1402?

Back

1.6%.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.

Front

Convert 11/25 to a percent.

Back

44%.

Front

If Jessie estimates her cat's weight to be 8 pounds and the actual weight is 10 pounds, what is the percent error?

Back

20%.

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.