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 actual 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%. This involves finding the absolute difference between the estimated and actual values, dividing by the actual value, and then multiplying by 100 to get a percentage.

Tags

CCSS.6.RP.A.3C

Front

What is the formula for calculating percent error?

Back

The formula for calculating percent error is: Percent Error = |(Estimated Value - Actual Value)| / |Actual Value| * 100%.

Front

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

Back

The percent error is 15.79%, calculated as |(12 - 14.25)| / |14.25| * 100%.

Tags

CCSS.6.RP.A.3C

Front

Bob estimated 230 attendees at a concert, but 300 attended. What is the percent error?

Back

The percent error is 23%, calculated as |(230 - 300)| / |300| * 100%.

Tags

CCSS.6.RP.A.3C

Front

What is the percent error if the estimated attendance for a basketball game is 15,000 and the actual attendance is 12,500?

Back

The percent error is 20%, calculated as |(15,000 - 12,500)| / |15,000| * 100%.

Tags

CCSS.6.RP.A.3C

Front

Jessie estimated her cat's weight to be 8 pounds, but the actual weight is 10 pounds. What is the percent error?

Back

The percent error is 20%, calculated as |(8 - 10)| / |10| * 100%.

Tags

CCSS.6.RP.A.3C

Front

Ms. Brown estimated 70 students would try out for the Cross Country team, but only 63 did. What is her percent error?

Back

The percent error is 11%, calculated as |(70 - 63)| / |70| * 100%.

Tags

CCSS.6.RP.A.3C

Front

Why is it important to calculate percent error in experiments?

Back

Calculating percent error helps to assess the accuracy of measurements and estimates, allowing for better understanding of the reliability of data and the effectiveness of experimental methods.

Tags

CCSS.7.SP.B.3

Front

What does a high percent error indicate about a measurement?

Back

A high percent error indicates that the measurement is significantly different from the actual value, suggesting a lack of accuracy in the estimation or measurement process.

Tags

CCSS.6.RP.A.3D