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What is difference between Accuracy and Precision?

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What is difference between Accuracy and Precision?
posted Apr 29, 2014 by Atul Mishra

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This is not C question rather chemistry/physics or math query. You should ask at correct forum or tag it correctly.

We are the bunch of people who want to help others but wrong questions and wrong tagging discourages (atleast me).

1 Answer

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Both accuracy and precision reflect how close a measurement/test is to an actual value, but accuracy reflects how close a measurement/test is to a known or accepted value, while precision reflects how reproducible measurements/tests are, even if they are far from the accepted value.

You can think of accuracy and precision in terms of hitting a bullseye. Accurately hitting the target means you are close to the center of the target, even if all of the marks are on different sides of the center. Precisely hitting a target means all the hits are closely spaced, even if they are very far from the center of the target.

And I agree it should not be asked here?

answer Apr 29, 2014 by Salil Agrawal
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