Posted by **Happy Face** on Tuesday, September 28, 2010 at 4:10pm.

Can someone please tell me how to calculate the percent of error for a set of data points?

thanks so much!

- Physics -
**Anonymous**, Wednesday, October 13, 2010 at 3:59pm
I don't know if this will work, but just in case.

calculate the average of the set. That is the actual value.

Then using formulas calculate the theoretical value, meaning, you figure out the actual value indirectly.

once you have these two values, plug them into this formula:

((theoretical - actual)/(theoretical))x100

minus the actual from the theoretical, then divide that by the theoretical. Times that by 100.

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