Percent Error Practice

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What is Percent Error?

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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.

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How do you calculate Percent Error?

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

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If you estimate a value of 50 and the actual value is 40, what is the Percent Error?

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

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What is the significance of a low Percent Error?

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A low Percent Error indicates that the estimated value is close to the actual value, showing high accuracy in the estimation.

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What does a high Percent Error indicate?

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A high Percent Error indicates a significant difference between the estimated value and the actual value, showing low accuracy in the estimation.

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If you guess that a basketball player will score 20 points and he scores 15, what is your Percent Error?

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Percent Error = |(20 - 15)| / |15| * 100 = 33.3%.

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You estimate that 300 people will attend an event, but 250 actually attend. What is the Percent Error?

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Percent Error = |(300 - 250)| / |250| * 100 = 20%.

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What is the formula for calculating the absolute error?

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Absolute Error = |Estimated Value - Actual Value|.

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If you estimate 150 gumballs in a jar and there are actually 200, what is your Percent Error?

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Percent Error = |(150 - 200)| / |200| * 100 = 25%.

Front

How do you interpret a Percent Error of 0%?

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A Percent Error of 0% means that the estimated value is exactly equal to the actual value, indicating perfect accuracy.