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How do I find absolute error of any equation?

Donagan

Top Answerer

An equation does not contain an "absolute error." Re-read the introduction above.

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How do I find the root value of a 6-digit number?

Donagan

Top Answerer

If you're asking about square roots, see Calculate a Square Root by Hand .

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Question

What is the absolute error in 2.11?

Donagan

Top Answerer

As explained above, the concept of "absolute error" involves both a measured value and an "actual" value.

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How do I calculate the estimated absolute value when the true value is not given?

Venatrixx

Community Answer

You'll need to know how your value was measured. For example, if you're measuring weight, and the smallest measuring unit is 1 pound, the most your measured value could be off by is .5 pound. Otherwise, you would have ended up with a different value. Use this maximum possible error as the absolute error.

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A person's weight is measured as 79.3kg. What is the absolute error of this measurement?

Donagan

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You would need to know the person's actual weight, and then find the difference between that weight and the measured weight.

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If data fall within a range, how is the absolute error calculated?

Donagan

Top Answerer

The absolute error would have to be expressed as a range, too. Find the difference between the actual value and the highest measured value. Then find the difference between the actual value and the lowest measured value. Then express the absolute error as a range between the larger difference and the smaller difference.

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