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1.6 Percent Error

1.6 Percent Error. What is percent error?. Example 1. Example 2. Example 3. For my astronomy students! (Current and future…seriously, this is an awesome class!) Around 200 BC, the Greek philosopher Eratosthenes calculated the circumference of Earth…without a tape measure!

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1.6 Percent Error

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  1. 1.6 Percent Error

  2. What is percent error?

  3. Example 1

  4. Example 2

  5. Example 3 • For my astronomy students! (Current and future…seriously, this is an awesome class!) • Around 200 BC, the Greek philosopher Eratosthenes calculated the circumference of Earth…without a tape measure! • He calculated it to be 24, 428 miles • The actual circumference is 24, 908 miles • What was his percent error? • Percent error= (mv-av)/av x 100%= • (24, 428 miles - 24, 908 miles)/ 24, 908 miles x 100%= • (-480. miles)/ 24, 908 miles x 100%= • -1.93% • That’s pretty a pretty good measurement without a tape measure!

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