How to calculate maximum percentage error in the measurement of density?
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First find the Error:
Subtract the Approximate value from the Exact value. Ignore any minus sign.
Example: I estimated 260 people, but 325 came.
260 − 325 = −65, ignore the "−" sign, so my error is 65
percent
Then find the Percentage Error:
Show the error as a percent of the exact value, so divide by the exact value and make it a percentage:
Example continued: 65/325 = 0.2 = 20%
Subtract the Approximate value from the Exact value. Ignore any minus sign.
Example: I estimated 260 people, but 325 came.
260 − 325 = −65, ignore the "−" sign, so my error is 65
percent
Then find the Percentage Error:
Show the error as a percent of the exact value, so divide by the exact value and make it a percentage:
Example continued: 65/325 = 0.2 = 20%
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