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. It is calculated using the formula: Percent Error = |(Estimated Value - Actual Value)| / |Actual Value| * 100.

Tags

CCSS.6.RP.A.3C

Front

How do you calculate Percent Error?

Back

To calculate Percent Error, use the formula: Percent Error = |(Estimated Value - Actual Value)| / |Actual Value| * 100.

Tags

CCSS.6.RP.A.3C

Front

If the estimated value is 15,000 and the actual value is 12,500, what is the percent error?

Back

Percent Error = |(15,000 - 12,500)| / |12,500| * 100 = 20%.

Tags

CCSS.6.RP.A.3C

Front

What is the percent error if the estimated value is 17,600 and the actual value is 21,300?

Back

Percent Error = |(17,600 - 21,300)| / |21,300| * 100 = 17.4%.

Tags

CCSS.6.RP.A.3C

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, meaning there is no error.

Front

What is the significance of a high percent error?

Back

A high percent error indicates a large discrepancy between the estimated value and the actual value, suggesting that the estimation was not accurate.

Tags

CCSS.6.RP.A.3C

Front

If an archaeologist estimated a fossil to be 520 years old, but it was actually 500 years old, what is the percent error?

Back

Percent Error = |(520 - 500)| / |500| * 100 = 4%.

Tags

CCSS.6.RP.A.3C

Front

How do you round percent error to the nearest tenth?

Back

To round percent error to the nearest tenth, look at the hundredths place. If it is 5 or greater, round up the tenths place by one.

Tags

CCSS.6.RP.A.3C

Front

What is the percent error for an estimated speed of 35 mph and an actual speed of 38 mph?

Back

Percent Error = |(35 - 38)| / |38| * 100 = 7.9%.

Tags

CCSS.6.RP.A.3C

Front

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

Back

Percent Error = |(12 - 14.25)| / |14.25| * 100 = 15.79%.

Tags

CCSS.6.RP.A.3C