What is percent error?
Percent Error Practice

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Mathematics
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7th Grade
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Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
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 = |(Measured Value - True Value)| / True Value * 100.
2.
FLASHCARD QUESTION
Front
How do you calculate absolute error?
Back
Absolute error is the difference between the measured value and the true value. It is calculated as: Absolute Error = |Measured Value - True Value|.
3.
FLASHCARD QUESTION
Front
What is the formula for calculating percent error?
Back
The formula for calculating percent error is: Percent Error = |(Measured Value - True Value)| / True Value * 100.
4.
FLASHCARD QUESTION
Front
If Robbie measures 25 grams instead of 20 grams, what is his absolute error?
Back
Robbie's absolute error is 5 grams, calculated as |25 - 20|.
5.
FLASHCARD QUESTION
Front
What number should Robbie use for the exact amount when calculating percent error?
Back
Robbie should use 20 grams as the exact amount.
6.
FLASHCARD QUESTION
Front
If Nick estimated 60 attendees but only 45 showed up, what is the percent error?
Back
The percent error is 33%, calculated as |(60 - 45)| / 60 * 100.
7.
FLASHCARD QUESTION
Front
What was the percent error if the estimated attendance was 15,000 and the actual was 12,500?
Back
The percent error is 20%, calculated as |(15,000 - 12,500)| / 15,000 * 100.
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