Data Reduction & Error Analysis in brief

This booklet was written to give an idea about how errors propagate in physical measurements. For this purpose we will first discuss what a measurement of a physical quantity means and where errors come from. Then we will show how to write down the result in a proper way, using a scientific notation. We then discuss how to compute errors in different cases, in direct and indirect measurements. Finally, we give an example that explicitly shows how to use the methods. The booklet can be useful for students who do laboratory work in physics. It might be used as a reference source for data reduction and propagation of errors