Percent Error

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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| * 100%.

Tags

CCSS.6.RP.A.3C

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How do you calculate percent error?

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To calculate percent error, subtract the actual value from the estimated value, take the absolute value of that difference, divide by the actual value, and then multiply by 100 to get a percentage.

Tags

CCSS.6.RP.A.3B

Front

What is the formula for calculating absolute error?

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Absolute Error = |Estimated Value - Actual Value|.

Tags

CCSS.6.NS.C.7C

Front

If the estimated value is 100 and the actual value is 80, what is the percent error?

Back

Percent Error = |(100 - 80)| / |80| * 100% = 25%.

Tags

CCSS.6.RP.A.3C

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What does a percent error of 0% indicate?

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A percent error of 0% indicates that the estimated value is exactly equal to the actual value, meaning there is no error.

Front

In the context of the basketball game attendance question, what was the estimated value?

Back

The estimated value was 15,000 people.

Tags

CCSS.4.NBT.B.5

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In the context of the deer population question, what was the actual count?

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The actual count was 21,300.

Tags

CCSS.7.RP.A.3

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What is the significance of understanding percent error in real-world applications?

Back

Understanding percent error helps in assessing the accuracy of estimates and measurements, which is crucial in fields like science, engineering, and economics.

Tags

CCSS.6.RP.A.3C

Front

What is the percent error if the estimated value is 50 and the actual value is 40?

Back

Percent Error = |(50 - 40)| / |40| * 100% = 25%.

Tags

CCSS.6.RP.A.3C

Front

How can percent error be used to improve future estimates?

Back

By analyzing percent error, one can identify patterns of overestimation or underestimation, allowing for adjustments in future estimates.

Tags

CCSS.6.RP.A.3C